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Information is power. But like all power, there are those who want to keep it for themselves. The world’s entire scientific and cultural heritage, published over centuries in books and journals, is increasingly being digitized and locked up by a handful of private corporations. Want to read the papers featuring the most famous results of the sciences? You’ll need to send enormous amounts to publishers like Reed Elsevier.

There are those struggling to change this. The Open Access Movement has fought valiantly to ensure that scientists do not sign their copyrights away but instead ensure their work is published on the Internet, under terms that allow anyone to access it. But even under the best scenarios, their work will only apply to things published in the future. Everything up until now will have been lost.

That is too high a price to pay. Forcing academics to pay money to read the work of their colleagues? Scanning entire libraries but only allowing the folks at Google to read them? Providing scientific a

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trait Isomorphism[A, B] {
  def fw: A => B
  def bw: B => A
}
 
object Isomorphism {
  implicit def anyIso[A](a: A) = new {
    def as[B](implicit ev: Isomorphism[A, B]) = ev fw a
  }
 

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Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

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//by Jo
//https://twitter.com/jn3008/status/1169671889121435656

// opensimplexnoise code in another tab is necessary
// --> code here : https://gist.github.com/Bleuje/fce86ef35b66c4a2b6a469b27163591e

void setup() {
  size(800, 600, P2D);
  smooth(8);
  noFill();

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// note : if you're on github gist and want to copy paste this code, you can click on the "Raw" button
// and then do Ctrl A, Ctrl C, Ctrl V

/*
 * OpenSimplex Noise in Java.
 * by Kurt Spencer
 * 
 * v1.1 (October 5, 2014)
 * - Added 2D and 4D implementations.
 * - Proper gradient sets for all dimensions, from a

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object SessionTypes {

  import scala.language.higherKinds
  import scala.language.implicitConversions

  type Receiver = String
  type Address 	= String
  type Content 	= String

  case class Parcel[+S<:State](content: Content, receiver: Receiver, address: Address)

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import Emitter._

import scala.annotation.tailrec
import scala.concurrent.Future._
import scala.concurrent.{ExecutionContext, Future}

object Emitter {
  type Event[A] = Future[Option[(A, Emitter[A])]]

  case object Zero extends Emitter[Nothing] {

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WHITESPACE ODDITY
  by Paul Phillips, in eternal admiration of David Bowie, RIP

Bound Ctrl to Major mode
Bound Ctrl to Major mode
Read inputrc and set extdebug on
Bound Ctrl to Major mode (Ten, Nine, Eight, Seven, Six)
Connecting readline, options on (Five, Four, Three)
Check the syntax, may terminfo be with you (Two, One, Exec)

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Latency Comparison Numbers
--------------------------
L1 cache reference                            0.5 ns
Branch mispredict                             5   ns
L2 cache reference                            7   ns             14x L1 cache
Mutex lock/unlock                            25   ns
Main memory reference                       100   ns             20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy              3,000   ns
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD*              150,000   ns    0.15 ms