I read a study that I am now searching for that showed MRI scans of people trying to change their mind about a subject. It consumed huge amounts of energy. People&#x27;s brains are built to build an accurate, complete view of the survival landscape and forgo any wasted energy beyond that. Tolerence can be socialized in at a young age but changing your mind consumes huge amounts of resources better spent perpetuating survival. People obtain the same life milestones now, only on a protracted timeline. My thesis is that progress will be slower than before, for exactly as long as old&#x2F;tired humans stick around.