note that those are kilocalories, and that is ignoring the calories needed for the circulatory and immune systems which are somewhat necessary for proper function. Using 2000 cal per day/10 hours of thinking gives a consumption of ~200W
That is true but there’s 3.7 billion years of evolutionary “design” to make self replicating, self fueling animals to use that brain. There’s no AI within foreseeable future capable of that. One might look at brains as a side effect of evolution of the self replicating, self fueling bits.
