Danny & Mark talk about a type of communism based around a centrally planned economy. Yes, we know, we're scientists, not economists! But there are serious scientific challenges we have to face if this type of economy were to ever work.

Relevant links:

http://chris-said.io/2016/05/11/optimizing-things-in-the-ussr/

https://news.ycombinator.com/item?id=14515225

http://crookedtimber.org/2012/05/30/in-soviet-union-optimization-problem-solves-you/

http://mathworld.wolfram.com/LinearProgramming.html

https://www.youtube.com/watch?v=3I9AdLnjP0M