“The universe is a quantum computer. Since you can simulate any set of particle interactions with a quantum computer made of the same number of particles, then there’s no practical difference between the universe and a quantum computer simulating the universe.” UniverseQuantum Computer Book:Supersymmetry Source: Supersymmetry
“I wasn’t sure how I felt about there being another me sharing space in the universe. Would I even like myself?” Universe Book:Superposition Source: Superposition