There are several works of science fiction containing a trope of a universe-wide computer as the end-game of galactic civilization (Multivac etc). But what would the upper bound for the computing power of such a computer be?
In Joe Armstrongs 2013 talk “The Mess We’re In” he introduced me to some answers to this question (at 26:26). See the video and links at the bottom for more info.
- “The Mess We’re In” by Joe Armstrong](https://www.youtube.com/watch?v=lKXe3HUG2l4)
- Limits of Computation