Seems like a mistake to assume that the radius of the computational substrate is the same as the radius of radiative heat dissipation. With any sort of active heat transport, those two can decouple: we can actively transport the heat from the small computational substrate out to a large cooling surface. That would let us achieve the energy and speed advantages of smaller size while still maintaining a low temperature.
Actually, it is partially decoupled in humans see this nice comment thread, which buys maybe an OOM. I didn’t fully update the article yet from that comment thread.
Seems like a mistake to assume that the radius of the computational substrate is the same as the radius of radiative heat dissipation. With any sort of active heat transport, those two can decouple: we can actively transport the heat from the small computational substrate out to a large cooling surface. That would let us achieve the energy and speed advantages of smaller size while still maintaining a low temperature.
Actually, it is partially decoupled in humans see this nice comment thread, which buys maybe an OOM. I didn’t fully update the article yet from that comment thread.