A House at the End of the Track, page 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22. Download Mac Note that the Mac builds of OpenModelica are discontinued after 1.16. An alternative that is fast and works on all recent versions of OSX is installing on a Linux virtual machine; there are pre-built virtual machine images available.
If you are developing daemons to run on OS X, it is highly recommended that you design your daemons to be
launchd
compliant. Using launchd
Sodacity (itch) mac os. provides better performance and flexibility for daemons. It also improves the ability of administrators to manage the daemons running on a given system.Aug 15, 2018 To pause the system during startup, simply press the Option key (Alt key on a Windows keyboard) – the EFI BIOS will then scan your hard disk partitions, CD/DVD devices and USB ports for operating systems and allow you to select the operating system to boot (which could include the macOS installation app from a USB stick). The intertank test article joins both more test hardware and actual flight hardware of the world’s largest rocket here in Huntsville. Over the course of the year, it will be joined by even more test articles, including those giant fuel tanks, while being accompanied by less flight hardware – while it’s cool to have giant rocket parts in Huntsville, it’s even cooler to have them in. InitialWindow is a PUP (potentially unwanted program) that belongs to the Adware family. Adware is something which designed in order to show third-party advertisements to the user without asking his permission. Adware takes control of browsers and redirects them to undesired web-sites like the InitialWindow every time you browse the Net.
If you are running per-user background processes for OS X,
launchd
is also the preferred way to start these processes. These per-user processes are referred to as user agents. A user agent is essentially identical to a daemon, but is specific to a given logged-in user and executes only while that user is logged in.Unless otherwise noted, for the purposes of this chapter, the terms “daemon” and “agent” can be used interchangeably. Thus, the term “daemon” is used generically in this section to encompass both system-level daemons and user agents except where otherwise noted.
There are four ways to launch daemons using
launchd
. The preferred method is on-demand launching, but launchd
can launch daemons that run continuously, and can replace inetd
for launching inetd
-style daemons. In addition, launchd
can start jobs at timed intervals.Although
launchd
supports non-launch-on-demand daemons, this use is not recommended. The launchd
daemon was designed to remove the need for dependency ordering among daemons. If you do not make your daemon be launched on demand, you will have to handle these dependencies in another way, such as by using the legacy startup item mechanism.Launching Custom Daemons Using launchd
With the introduction of
launchd
in OS X v10.4, an effort was made to improve the steps needed to launch and maintain daemons. What launchd
provides is a harness for launching your daemon as needed. To client programs, the port representing your daemon’s service is always available and ready to handle requests. In reality, the daemon may or may not be running. When a client sends a request to the port, launchd
may have to launch the daemon so that it can handle the request. Once launched, the daemon can continue running or shut itself down to free up the memory and resources it holds. If a daemon shuts itself down, launchd
once again relaunches it as needed to process requests.In addition to the launch-on-demand feature,
launchd
provides the following benefits to daemon developers:- Simplifies the process of making a daemon by handling many of the standard housekeeping chores normally associated with launching a daemon.
- Provides system administrators with a central place to manage daemons on the system.
- Supports
inetd
-style daemons. - Eliminates the primary reason for running daemons as root. Because
launchd
runs as root, it can create low-numbered TCP/IP listen sockets and hand them off to the daemon. - Simplifies error handling and dependency management for inter-daemon communication. Because daemons launch on demand, communication requests do not fail if the daemon is not launched. They are simply delayed until the daemon can launch and process them.
The launchd Startup Process
After the system is booted and the kernel is running,
launchd
is run to finish the system initialization. As part of that initialization, it goes through the following steps: - It loads the parameters for each launch-on-demand system-level daemon from the property list files found in
/System/Library/LaunchDaemons/
and/Library/LaunchDaemons/
. - It registers the sockets and file descriptors requested by those daemons.
- It launches any daemons that requested to be running all the time.
- As requests for a particular service arrive, it launches the corresponding daemon and passes the request to it.
- When the system shuts down, it sends a
SIGTERM
signal to all of the daemons that it started.
The process for per-user agents is similar. When a user logs in, a per-user
launchd
is started. It does the following:![InitialDREAM InitialDREAM](https://m.media-amazon.com/images/I/51-y4W-h8IL.jpg)
- It loads the parameters for each launch-on-demand user agent from the property list files found in
/System/Library/LaunchAgents
,/Library/LaunchAgents
, and the user’s individualLibrary/LaunchAgents
directory. - It registers the sockets and file descriptors requested by those user agents.
- It launches any user agents that requested to be running all the time.
- As requests for a particular service arrive, it launches the corresponding user agent and passes the request to it.
- When the user logs out, it sends a
SIGTERM
signal to all of the user agents that it started.
Because
launchd
registers the sockets and file descriptors used by all daemons before it launches any of them, daemons can be launched in any order. If a request comes in for a daemon that is not yet running, the requesting process is suspended until the target daemon finishes launching and responds.If a daemon does not receive any requests over a specific period of time, it can choose to shut itself down and release the resources it holds. When this happens,
launchd
monitors the shutdown and makes a note to launch the daemon again when future requests arrive. Important: If your daemon shuts down too quickly after being launched,
launchd
may think it has crashed. Daemons that continue this behavior may be suspended and not launched again when future requests arrive. To avoid this behavior, do not shut down for at least 10 seconds after launch. Creating a launchd Property List File
To run under
launchd
, you must provide a configuration property list file for your daemon. This file contains information about your daemon, including the list of sockets or file descriptors it uses to process requests. Specifying this information in a property list file lets launchd
register the corresponding file descriptors and launch your daemon only after a request arrives for your daemon’s services. Table 5-1 lists the required and recommended keys for all daemons.The property list file is structured the same for both daemons and agents. You indicate whether it describes a daemon or agent by the directory you place it in. Property list files describing daemons are installed in
/Library/LaunchDaemons
, and those describing agents are installed in /Library/LaunchAgents
or in the LaunchAgents
subdirectory of an individual user’s Library
directory. (The appropriate location for executables that you launch from your job is /usr/local/libexec
.)Key | Description |
---|---|
Label | Contains a unique string that identifies your daemon to launchd . (required) |
ProgramArguments | Contains the arguments used to launch your daemon. (required) |
inetdCompatibility | Indicates that your daemon requires a separate instance per incoming connection. This causes launchd to behave like inetd , passing each daemon a single socket that is already connected to the incoming client. (required if your daemon was designed to be launched by inetd ; otherwise, must not be included) |
KeepAlive | This key specifies whether your daemon launches on-demand or must always be running. It is recommended that you design your daemon to be launched on-demand. |
For more information: For a complete listing of the keys, see the
launchd.plist
manual page.For sample configuration property lists, look at the files in
/System/Library/LaunchDaemons/
. These files are used to configure many daemons that run on OS X.Writing a “Hello World!” launchd Job
The following simple example launches a daemon named
hello
, passing world
as a single argument, and instructs launchd to keep the job running:In this example, there are three keys in the top level dictionary. The first is
Label
, which uniquely identifies the job. when. The second is ProgramArguments
which has a value of an array of strings which represent the tokenized arguments and the program to run. The third and final key is KeepAlive
which indicates that this job needs to be running at all times, rather than the default launch-on-demand behavior, so launchd should always try to keep this job running.Listening on Sockets
You can also include other keys in your configuration property list file. For example, if your daemon monitors a well-known port (one of the ports listed in
/etc/services
), add a Sockets
entry as follows:The string for
SockServiceName
typically comes from the leftmost column in /etc/services
. The SockType
is one of dgram
(UDP) or stream
(TCP/IP). If you need to pass a port number that is not listed in the well-known ports list, the format is the same, except the string contains a number instead of a name. For example:Debugging launchd Jobs
There are some options that are useful for debugging your launchd job.
The following example enables core dumps, sets standard out and error to go to a log file, and instructs launchd to temporarily increase the debug level of its logging while acting on behalf of your job (remember to adjust your syslog.conf accordingly):
Running a Job Periodically
The following example creates a job that is run every five minutes (300 seconds):
Alternately, you can specify a calendar-based interval. The following example starts the job on the 7th day of every month at 13:45 (1:45 pm). Like the Unix cron subsystem, any missing key of the
StartCalendarInterval
dictionary is treated as a wildcard—in this case, the month is omitted, so the job is run every month.Monitoring a Directory
The following example starts the job whenever any of the paths being watched have changed:
An additional file system trigger is the notion of a queue directory. The launchd daemon starts your job whenever the given directories are non-empty, and it keeps your job running as long as those directories are not empty:
Emulating inetd
The launchd daemon emulates the older
inetd
-style daemon semantics if you provide the inetdCompatibility
key:Behavior for Processes Managed by launchd
Processes that are managed by
launchd
must follow certain requirements so that they interact properly with launchd
. This includes launch daemons and launch agents. Chaintanks mac os.Required Behaviors
To support
launchd
, you must obey the following guidelines when writing your daemon code:- You must provide a property list with some basic launch-on-demand criteria for your daemon. See Creating a launchd Property List File.
- You must not daemonize your process. This includes calling the
daemon
function, callingfork
followed byexec
, or callingfork
followed byexit
. If you do,launchd
thinks your process has died. Depending on your property list key settings,launchd
will either keep trying to relaunch your process until it gives up (with a “respawning too fast” error message) or will be unable to restart it if it really does die. - Daemons and agents that are installed globally must be owned by the root user. Agents installed for the current user must be owned by that user. All daemons and agents must not be group writable or world writable. (That is, they must have file mode set to
600
or400
.)
Recommended Behaviors
To support
launchd
, it is recommended that you obey the following guidelines when writing your daemon code:- Wait until your daemon is fully initialized before attempting to process requests. Your daemon should always provide a reasonable response (rather than an error) when processing requests.
- Register the sockets and file descriptors used by your daemon in your
launchd
configuration property list file. - If your daemon advertises a socket, check in with
launchd
as part of your daemon initialization. For an example implementation of the check-in process, see SampleD. - During check-in, get the launch dictionary from
launchd
, extract and store its contents, and then discard the dictionary. Accessing the data structure used for the dictionary is very slow, so storing the whole dictionary locally and accessing it frequently could hurt performance. - Provide a handler to catch the
SIGTERM
signal.
In addition to the preceding list, the following is a list of things it is recommended you avoid in your code:
- Do not set the user or group ID for your daemon. Include the
UserName
,UID
,GroupName
, orGID
keys in your daemon’s configuration property list instead. - Do not set the working directory. Include the
WorkingDirectory
key in your daemon’s configuration property list instead. - Do not call
chroot
to change the root directory. Include theRootDirectory
key in your daemon’s configuration property list instead. - Do not call
setsid
to create a new session. - Do not close any stray file descriptors.
- Do not change
stdio
to point to/dev/null
. Include theStandardOutPath
orStandardErrorPath
keys in your daemon’s configuration property list file instead. - Do not set up resource limits with
setrusage
. - Do not set the daemon priority with
setpriority
Although many of the preceding behaviors may be standard tasks for daemons to perform, they are not recommended when running under
launchd
. The reason is that launchd
configures the operating environment for the daemons that it manages. Changing this environment could interfere with the normal operation of your daemon.Deciding When to Shut Down
If you do not expect your daemon to handle many requests, you might want to shut it down after a predetermined amount of idle time, rather than continue running. Although a well-written daemon does not consume any CPU resources when idle, it still consumes memory and could be paged out during periods of intense memory use.
The timing of when to shut down is different for each daemon and depends on several factors, including:
- The number and frequency of requests it receives
- The time it takes to launch the daemon
- The time it takes to shut down the daemon
- The need to retain state information
If your daemon does not receive frequent requests and can be launched and shut down quickly, you might prefer to shut it down rather than wait for it to be paged out to disk. Paging memory to disk, and subsequently reading it back, incurs two disk operations. If you do not need the data stored in memory, your daemon can shut down and avoid the step of writing memory to disk.
Special Dependencies
While
launchd
takes care of dependencies between daemons, in some cases, your daemon may depend on other system functionality that cannot be addressed in this manner. This section describes many of these special cases and how to handle them.Network Availability
If your daemon depends on the network being available, this cannot be handled with dependencies because network interfaces can come and go at any time in OS X. To solve this problem, you should use the network reachability functionality or the dynamic store functionality in the System Configuration framework. This is documented in System Configuration Programming Guidelines and System Configuration Framework Reference. For more information about network reachability, see Determining Reachability and Getting Connected in System Configuration Programming Guidelines.
Disk or Server Availability
If your daemon depends on the availability of a mounted volume (whether local or remote), you can determine the status of that volume using the Disk Arbitration framework. This is documented in Disk Arbitration Framework Reference.
Non-launchd Daemons
If your daemon has a dependency on a non-
launchd
daemon, you must take additional care to ensure that your daemon works correctly if that non-launchd
daemon has not started when your daemon is started. The best way to do this is to include a loop at start time that checks to see if the non-launchd
daemon is running, and if not, sleeps for several seconds before checking again.Be sure to set up handlers for
SIGTERM
prior to this loop to ensure that you are able to properly shut down if the daemon you rely on never becomes available.User Logins
In general, a daemon should not care whether a user is logged in, and user agents should be used to provide per-user functionality. However, in some cases, this may be useful.
To determine what user is logged in at the console, you can use the System Configuration framework, as described in Technical Q&A QA1133.
Kernel Extensions
If your daemon requires that a certain kernel extension be loaded prior to executing, you have two options: load it yourself, or wait for it to be loaded.
The daemon may manually request that an extension be loaded. To do this, run
kextload
with the appropriate arguments using exec
or variants thereof. I/O Kit kernel extensions should not be loaded with kextload
; the I/O Kit will load them automatically when they are needed.Note: The
kextload
executable must be run as root in order to load extensions into the kernel. For security reasons, it is not a setuid executable. This means that your daemon must either be running as the root user or must include a helper binary that is setuid root in order to use kextload
to load a kernel extension.Alternatively, our daemon may wait for a kernel service to be available. To do this, you should first register for service change notification. This is further documented in I/O Kit Framework Reference.
After registering for these notifications, you should check to see if the service is already available. By doing this after registering for notifications, you avoid waiting forever if the service becomes available between checking for availability and registering for the notification.
Note: In order for your kernel extension to be detected in a useful way, it must publish a node in the I/O registry to advertise the availability of its service. For I/O Kit drivers, this is usually handled by the I/O Kit family.
For other kernel extensions, you must explicitly register the service by publishing a nub, which must be an instance of
IOService
.For more information about I/O Kit services and matching, see IOKit Fundamentals, I/O Kit Framework Reference (user space reference), and Kernel Framework Reference (kernel space reference).
For More Information
The manual pages for
launchd
and launchd.plist
are the two best sources for information about launchd
.In addition, you can find a source daemon accompanying the
launchd
source code (available from http://www.macosforge.org/). This daemon is also provided from the Mac Developer Library as the SampleD sample code project. Cubit and the evil gameshow host mac os.The Daemons and Agents technical note provides additional information about how
launchd
daemons and agents work under the hood.Finally, many Apple-provided daemons support
launchd
. Their property list files can be found in /System/Library/LaunchDaemons
. Some of these daemons are also available as open source from http://www.opensource.apple.com/ or http://www.macosforge.org/. Copyright © 2003, 2016 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2016-09-13
Where good ideas come from. Is Chrome OS a good idea?I recently read the book ’Where good ideas come from: The Natural History of Innovation’ by Steven Johnson. It was an exciting read. The book attempts to define seven primary patterns that recur in all innovative processes and ideas in Earth’s history, both natural and cultural. The beauty of the book is in how elegantly the author relates ideas from different scales and environments. For example, he explores and derives analogies from varied ideas in disconnected environments like ‘the idea of carbon based life by nature’, 'the diverse life forms and the biological innovation of coral reefs’, 'the idea of Twitter in Internet by humans’. By surveying various forms of innovations in human history and natural history, Steven gives a compelling case for the importance of all his 7 patterns. The patterns are Adjacent Possible, Liquid Networks, The Slow Hunch, Serendipity, Error, Exaptation and Platforms. I am going to concentrate on just the first pattern.
Adjacent Possible
At any point in time, the world is capable of only finite innovations. The innovations are the first-order combinations of the other ideas available at that time. In Steven’s words,
We have a natural tendency to romanticize breakthrough innovations, imagining momentous ideas transcending their surroundings, a gifted mind somehow seeing over the detritus of old ideas and ossified tradition. But ideas are works of bricolage; they’re built out of that detritus. We take the ideas we’ve inherited or that we’ve stumbled across, and we jigger them together into some new shape.
The new idea that can be reached by combining ideas currently available is called an “adjacent possible” (A term coined by theoretical biologist Stuart Kauffman). To use the simple analogy given by Steven, imagine that there is a palace with an infinite number of rooms. Opening a door will lead you to a room with say 10 other doors. Opening one of these 10 doors will lead you to a room with few other new doors. So, to travel to a room at the second level, you should have opened a door at the first level and reached a room at the first level. It’s not possible for anyone to jump straight into the rooms at second or higher levels. Also, you can only travel to a fixed set of rooms at any point. As you open a door and enter into one of these rooms, you get new doors to open and you find new rooms in your 'adjacent possible’. Ideas are like the rooms in the palace. An idea at the fifth level becomes possible only when we have traveled through the ideas in the first four levels. As Steven puts it,
What the adjacent possible tells us is that at any moment the world is capable of extraordinary change, but only certain changes can happen. The strange and beautiful truth about the adjacent possible is that its boundaries grow as you explore those boundaries.
I will explore two of the interesting examples for adjacent possible presented in the book - one from natural history and one from human history.
Why life was possible on Earth
Life is the single greatest invention of nature. We still haven’t cracked the rare chemical reaction that lead to the creation of life - “the point at which chemistry and physics gave way to biology”, as Steven puts it. However, we know that all life on earth is Carbon-based life. Even though Silicon has the same valence electron(four) as Carbon and occurs hundreds of times more abundantly than Carbon, nature has favoured carbon-based life instead of silicon-based life. The reason turns out that silicon is not as versatile as carbon in making double and triple bonds that create the long chains and rings of fatty acids and sugars. Also Silicon requires far more energy than Carbon to form bonds and Silicon bonds readily dissolve in water (a major ingredient of prebiotic earth). In other words, carbon was ready to explore its adjacent possible and the environment of prebiotic earth with water encouraged the collision and exploration of new carbon molecules. The famous Miller-Urey experiment simulated the conditions of primordial soup (containing water, methane, ammonia and hydrogen) and used pair of electrodes to simulate lightning. Results showed that the Carbon atoms, present only in methane(CH4), were able to spontaneously recombine into many of the organic compounds essential for life: sugars, lipids, nucleic acids. Scientists were able to show that more than 20 different amino acids were generated in original Miller-Urey experiment conducted in 1952 and, from our latest understandings of prebiotic earth, if we included more possible prebiotic molecules, the experiment created more diverse molecules.
Once the first carbon-based single-cellular life emerged on earth, then evolution by natural selection took over. Unlike the origin of life, we have immense evidences for evolution by natural selection and we understand how it works. Evolution is one giant exhibition of exploration of the adjacent possible. There is a prevalent misunderstanding among the public that it’s improbable for a process like evolution to have created complex things. The fundamental understanding of evolution as an agent for exploring adjacent possible throws some light on how evolution could create seemingly improbable things like the human brain, a beautiful flower or a beautiful cuckoo sound. They were not created in one step. They are a result of a serious of billions and billions of steps of exploring the adjacent possible. As Steven points out in his examples,
When dinosaurs such as the velociraptor evolved a new bone called the semilunate carpal (the name comes from its half-moon shape), it enabled them to swivel their wrists with far more flexibility. In the short term, this gave them more dexterity as predators, but it also opened a door in the adjacent possible that would eventually lead, many millions of years later, to the evolution of wings and flight. When our ancestors evolved opposable thumbs, they opened up a whole new cultural branch of the adjacent possible: the creation and use of finely crafted tools and weapons.
As pointed in the above example, nature didn’t create a flying bird in one step. The possibility of a bird came into the realm of adjacent possible only when the velociraptor evolved to have the semilunate carpal bone. And it took millions of years of explorations of the adjacent possible (by mutations) to evolve a bird. If the semilunate carpal bone didn’t have a survival advantage (of more dexterity) and nature didn’t favour it, then wings would have never been in the realm of adjacent possible (and humans might have never got the inspiration to build an airplane!). Steven puts this in perspective when he says,
Four billion years ago, if you were a carbon atom, there were a few hundred molecular configurations you could stumble into. Today that same carbon atom, whose atomic properties haven’t changed one single nanogram, can help build a sperm whale or a giant redwood or an H1N1 virus, along with a near-infinite list of other carbon-based life forms that were not part of the adjacent possible of prebiotic earth.
Why the Father of Computer couldn’t build a computer
Like life in earth’s natural history, one of the greatest inventions in human history is the Computer. The mastermind behind the idea of a programmable computer is Charles Babbage and he is aptly called the 'Father of Computers’. His ’Analytical Engine’, proposed in 1837, was the first programmable computer (The world’s first programmer was an English lady, Ada Lovelace, who wrote instructions for Babbage’s analytical engine). But unfortunately, Charles Babbage was never able to build his analytical engine. This is because Babbage didn’t have the 'right spare parts’ to build his computer. In the nineteenth century, the analytical engine has to be built with all mechanical parts with moving objects. Building the complex analytical engine with mechanical parts was impossible. Babbage died without completing his dream computer. Eventhough the idea of a computer was available in 1837, it took more than a century for the first programmable computer to be build. We had to wait till the electronic-era for Babbage’s dream to be realized. In other words, a programmable computer was not in the realm of adjacent possible in 19th century. Babbage was “ahead of his time”. It’s as if he saw what was inside the 1000th level room in the palace of ideas, through his brilliance. But we had to wait till all the intial 999 doors were opened and building a computer was in the adjacent possible. As Steven’s elegantly puts it,
trying to create an Analytical Engine in 1850 was the equivalent of those fatty acids trying to self-organize into a sea urchin. The idea was right, but the environment wasn’t ready for it yet.
Babbage’s Analytical Engine is still a vaporware.
Why is Chrome OS a good idea now?
Few days after I read 'Where good ideas come from’, Chrome OS netbook (Cr-48) was launched and I was fascinated by Eric Schmidt’s (CEO of Google) closing speech in the launch event. You can read the transcript at Cloud Computing: the latest chapter in an epic journey. Eric explains how the idea of cloud computing is as old as 1983, when Sun introduced a diskless computer. Later in the 90’s after the innovations of Web, Oracle had introduced something called as “network computer”. It’s similar to a Chrome OS netbook. But the concept of Network Computer failed. Eric explains that the concept failed in the 90’s because
the web couldn’t compete with the scale and power of the then-existing desktop applications, which at the time were Ole and Win32 and various Mac APIs.
And today, after 15 years, we have 1000 times faster networks, CPUs, and screens. Around 2004, the advent of AJAX (Asynchronous JavaScript and XML) enabled building powerful web-applications like gmail. Interfaces competent with desktop applications could be finally built. The model of cloud computing, where thousands of networked computers do complex operations, while the client(browser) provides high-quality user interface, became possible. As Eric explains it
we’ve gone from a world where we had reliable disks and unreliable networks, to a world where we have reliable networks and basically no disks… the kind of magic that we could imagine 20 years ago, but couldn’t make real because we lacked the technology.
To summarize Eric’s argument, Chrome OS is now in the adjacent possible. We can see the striking similarity between how building first computer took more than a century since its inception and how creating a Cloud computing platform took decades after its inception. Although the idea of cloud computing could be conceived years before, like the original idea of an analytical engine, we had to wait till Moore’s law would grow by a factor of 1000 for Chrome OS to be in the adjacent possible. Again “the idea was right, but the environment wasn’t ready for it yet”.
Moral of the Story
The important takeaway from understanding the 'Adjacent Possible’ is as Steven says,
All of us live inside our own private versions of the adjacent possible. In our work lives, in our creative pursuits, in the organizations that employ us, in the communities we inhabit—in all these different environments, we are surrounded by potential new configurations, new ways of breaking out of our standard routines…. The trick is to figure out ways to explore the edges of possibility that surround you. This can be as simple as changing the physical environment you work in, or cultivating a specific kind of social network, or maintaining certain habits in the way you seek out and store information.
And talking about the kind of environment that creates good ideas,
innovative environments are better at helping their inhabitants explore the adjacent possible, because they expose a wide and diverse sample of spare parts—mechanical or conceptual—and they encourage novel ways of recombining those parts. Environments that block or limit those new combinations—by punishing experimentation, by obscuring certain branches of possibility, by making the current state so satisfying that no one bothers to explore the edges—will, on average, generate and circulate fewer innovations than environments that encourage exploration.
Initialdream Mac Os Downloads
Finally,
The trick to having good ideas is not to sit around in glorious isolation and try to think big thoughts. The trick is to get more parts on the table.
The more number of parts - mechanical or conceptual - we are equipped with, the more ideas that are waiting to be explored in our Adjacent Possible.
Initialdream Mac Os Download
P.S: This essay is dedicated to my friends who tease me for buying a Kindle. :P I have hereby proven that I have read atleast one book and purchasing the Kindle was useful. You guys can stop teasing me ;) And I also recommend interested people to read the book. After all, I covered only the first pattern. There is so much exciting stuff about the other 6 patterns.
Initialdream Mac Os Catalina
PRINT THIS POSTView comments2/6/11 — 1:07pmShort URL: https://tmblr.co/ZXxPDy2xbZC4