Computers are famous for being able to do complicated things starting from simple programs.

The history of the universe is, in effect, a huge and ongoing quantum computation. The universe is a quantum computer.

Meaning is like pornography, you know it when you see it.

Bits of ignorance are like viruses that are copied and spread by interaction.

Thinking of the universe as a computer is controversial.

Quantum mechanics is just completely strange and counterintuitive. We can't believe that things can be here [in one place] and there [in another place] at the same time. And yet that's a fundamental piece of quantum mechanics. So then the question is, life is dealing us weird lemons, can we make some weird lemonade from this?

Every physical system registers information, and just by evolving in time, by doing its thing, it changes that information, transforms that information, or, if you like, processes that information.