Are you saying that only (human?) biological brains can be GI, and that whatever intelligence is, it would emerge from a pure physics-based simulation?
Both of those seem questionable, multiplying them together seems highly unlikely.
Both of those seem questionable, multiplying them together seems highly unlikely.
Even though every NES in existence is a physical system, you don't physical level simulation to create and have a playable NES system via emulation.
1) intelligence and consciousness seem to be linked and we don’t understand consciousness. It may be physical but not purely chemical and classic physics.
2) Even if it is purely chemistry and classic physics, the development process may matter. Whole brain simulation may get you a simulated lump of flesh with no electrical activity.
This is a trivial question to answer.