It is interesting to compare this to Jonathan Blow's talk on the rewind system in Braid [1]. This stores complete game states using a compression library to ke

It is interesting to compare this to Jonathan Blow's talk on the rewind system in Braid [1]. This stores complete game states using a compression library to keep memory under control, whereas Braid stored a combination of keyframes, and diffs from those keyframes, to avoid using a compression library. [1] https://www.youtube.com/watch?v=8dinUbg2h70 https://www.youtube.com/watch?v=8dinUbg2h70