I think, in discarding the simplicity argument, you are underestimating how many zeros are in the ratio gigabytes needed to specify the brain simulation initial conditions:gigabytes needed to store the quantum fields as the simulation runs. The data in the brain is vaguely linear in number of electrons, the ram needed to simulate the brain is vaguely exponential in number of electrons. “Simplest explanation of the state of the GPUs by a factor of 100” and “Simplest explanation of the state of the GPUs by a factor of 10^number of stars in the visible universe” are only quantitatively different, but sometimes quantity has a quality all of its own.
I think, in discarding the simplicity argument, you are underestimating how many zeros are in the ratio gigabytes needed to specify the brain simulation initial conditions:gigabytes needed to store the quantum fields as the simulation runs. The data in the brain is vaguely linear in number of electrons, the ram needed to simulate the brain is vaguely exponential in number of electrons. “Simplest explanation of the state of the GPUs by a factor of 100” and “Simplest explanation of the state of the GPUs by a factor of 10^number of stars in the visible universe” are only quantitatively different, but sometimes quantity has a quality all of its own.