- Aliens from billions of years into the future with an infinite source of energy and computational power have managed to slice the universe and put us into the solar system as a simulation. Everything coming back beyond the solar system is simulated, matter and energy alike.
- If academics kept compiling the knowledge of the world starting at 2000BC, and everybody were taught the knowledge, we'd have reached our current level of science by 1000BC.
Oh, and he is an economist too! How appropriate. Yep, Dr Hanson, keep up the good work.