"Very interesting. He's describing a sort of memoization in chemistry <a href=""https://youtu.be/ZecQ64l-gKM?t=5714"">https://youtu.be/ZecQ64l-gKM?t=5714</a>. Which is a way of achieving computational efficiency with programs. <a href=""https://en.wikipedia.org/wiki/Memoization"">https://en.wikipedia.org/wiki/Memoization</a>."