You completely failed to understand my argument. Exactly. Skulls. With connection to living and feeling flesh. The human brains provide a minimum theoretical

You completely failed to understand my argument. Exactly. Skulls. With connection to living and feeling flesh. The human brains provide a minimum theoretical limit, that's all. The existence of the human brain proves categorically that it is physically possible to build a computing device that fits inside a skull and has the computational capabilities of a brain. It exists, therefore it can exist. So, any argument that "it's impossible to build such a device" are refuted by our very existence. We cannot even model the brain of the simplest worm See Moore's law and the relationship between computational capacity and neural network modelling.