This is a very simple proof that AGI is theoretically possible. This is not meant to be a realistic way to build AGI, just a proof that it could be done in theory if we had huge amounts of computing power. We know that:
- Humans are intelligent creatures.
- Humans are built out of atoms.
- Atoms obey the laws of quantum electrodynamics, which is Turing-computable (using a constant like pi or e to generate the random numbers necessary).
Therefore, we know that you can build an intelligent system which obeys the laws of quantum electrodynamics (because humans are such a system), and can therefore be simulated. Since this simulation duplicates every feature of a human down to the quantum level, we know that it can solve any problem a human can solve. So we know that there is at least one artificial computer system which has general intelligence at least as powerful as a human’s. QED.