From 1veritasium, 2veritasium, or sciencium.

Recently we published a series of videos on @veritasium all about the principle of least action. At the end of part 2, https://www.youtube.com/watch?v=qJZ1Ez28C-A, we asked our viewers to submit their questions to writer/director Casper Mebius and the founder of Veritasium – Derek Muller.

This is was all done via our Patreon, https://www.patreon.com/c/veritasium, and the video has been free to access on there for the past few weeks.

Due to the engagement we received on Patreon, we decided to publish it here as well to a wider audience!

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Sciencium is a sister channel to Veritasium. Veritasium is a channel of science and engineering videos featuring experiments, expert interviews, cool demos, and discussions with the public about everything science.

Join us on Patreon to help support Veritasium, and for a chance to contribute to future exclusive Q&As! https://www.patreon.com/c/veritasium

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0:00 Why is nature so lazy?
2:03 What is action intuitively?
2:52 Heisenberg’s Uncertainty Principle
5:43 Infinite Energy Problem
7:12 Entropy
9:17 The Double Slit Experiment
12:12 Causality
14:45 The Demo

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Written by The Viewers
Questions chosen and answered by Derek Muller and Casper Mebius
Edited by Amy Rapeer and Luke Molloy
Animated by Fabio Albertelli
Produced by Gabe Strong, Casper Mebius and Matthew Cavanagh
Thumbnail contributions by Ben Powell