Genetic Algorithm – explained in 4 minutes

Short introduction to the facts of using genetic algorithms in financial markets. Please review for more details.

Watch a GA live in intraday trading:
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Simulating Natural Selection

There is an interactive simulation:
And an overview video of that simulator:

A few places to learn more about evolution and natural selection:
Any intro biology text you might have access to.

Special thanks to supporters on Patreon, especially:
Jordan Scales
Eric Helps
Ben Kamens
Ben Komalo
Christy Serbus
Sean Barker

Support Primer on Patreon:

For discussion and updates
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Streaming myself working on these monstrosities:
– Twitch:

Made with Blender and python.

The music is „Investigations“ by Kevin MacLeod, distributed under a CC-BY license via

Several other inputs into the graphics are from public domain contributions to
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40 Antworten auf „Genetic Algorithm – explained in 4 minutes“

  1. just watch this 5 years after being published
    result? More confused…
    Yes, it is explained in 4 (actually 5) mins but with that kind of explanation, even someone with high IQ wouldn't understand
    and the voice… ugh… not to forget the figures there… that sleeping woman is literally me when hearing that explanation

  2. If you're about to leave a comment saying that faster creatures aren't actually less efficient, read this first. I presented that part a bit strangely.

    At 2:14, I say moving quickly is less efficient, giving the example of a creature moving a unit distance in half the time, using twice the energy. Then, at 4:53, I show a formula for the energy cost per unit time, which depends on the square of the creature's speed.

    I gave distance per time, energy per time, and distance per energy at separate parts of the video, and that was confusing.

    So here's a more explicit summary.
    If we double a creature's speed…
    – its distance per time is doubled (the definition of speed)
    – its energy per time is quadrupled (because it depends on the square of speed)
    – its distance per energy is halved: (2x distance per time) / (4x energy per unit time)

    That last bullet is the "efficiency" from the video. With its starting energy for a day, a 2x-speed creature can only travel half the distance.

  3. I'm so glad I rewatched this and discovered there's a simulation for students to involve themselves with now. I plan on having my class use this to more thoroughly explore natural selection next year!

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