This is entirely speculative. I am of the view that intelligence has an artificial nature as well as being rooted in the brain. As an aside, it seems clear that, in view of recent events, intelligence is not a priority in business, although it may be in some areas of business. Lack of it is not clearly an obstacle to great wealth.
I am simply throwing this out as most here would believe their intelligence to be inherent and not a factor of chosen technical choices.