> why aren’t there some humans running around with heads twice as big and twice the neurons? Because humans don't live in an artificial bubble like ML models d

> why aren’t there some humans running around with heads twice as big and twice the neurons? Because humans don't live in an artificial bubble like ML models do but they always are already entangled in a network (aka society) of similar beings. The ultimate actor isn't the single individual but the group/aggregate/swarm/society. Given the current societal demands, the current brain size is sufficiently large. A single nerd with a double-sized brain would most likely not be able to reproduce in human societies as of today. We probably shouldn't overrate a single individual's capabilities.