Verlet.js is a physics engine written in javascript [0]. It was posted and discussed on HN a few days ago [1]. OP didn't write it, but probably understands it very well.
I didn't use the aforementioned verlet.js physics engine, but that's basically what this is. Verlet integration is a simple way of modeling forces. If you are referring to the actual js code, it's asm.js-compatible javascript, which you can read more about here: http://asmjs.org/
The print statements to debug was a constant in "Coders at Work" too. Also in that book I found interesting that everyone interviewed was asked what the most difficult thing they had to debug was, and almost all of them said something to do with concurrency.
That's not surprising though, if there's one thing I've had drummed into me throughout my education and career, it's that concurrency is /hard/. Particularly since it requires thinking about things in a completely different way to a lot of single-threaded programming.
Yes, and its because programming languages actually provide almost nothing to help out here.
E.g. methods cannot be declared 'non-reentrant'. Data cannot be declared 'atomic'. Yes, you can hack together solutions using library methods etc. but the language doesn't help much.
We wrote an 'operating environment' for a major computer manufacturer once - a storage device they eventually cancelled (hardware was problematical). Programmers wrote objects that were each invoked single-threaded, passed workitem messages between services instead of directly calling. The environment managed message queues, handled all the threading and reentrancy invisibly.
The programming team loved it. They could write restartable, failoverable modules in this model without every dealing for an instant with concurrency explicitely.
Without meaning a personal dig it's clear that you're quite ignorant about drugs. Anyone who's ever done any knows they're the original augmented reality. There are few drugs that one would take to escape reality entirely; the vast majority of drug use is social in nature and rooted in reality by definition.
Agreed. And the "acceptability" of such substances varies from society to society (case-in-point: khat). But that still does not take away the societal distress and human cost their abuse causes.
master>pip install pcap
Downloading/unpacking pcap
Could not find any downloads that satisfy the requirement pcap
No distributions at all found for pcap
Storing complete log in /Users/bob/.pip/pip.log