I think changing "fix" to "improve" is a good idea. I also thing changing the first sentence to:
"Over the last four decades, cognitive psychologists and behavioral economists have discovered many cognitive biases human brains fall prey to when thinking and deciding."
improves the flow by spacing out the word "cognitive" would be a good idea. Footnoting behavioral economists is likely a good idea also as a lot of people are unfamiliar with that concept.
I think changing "fix" to "improve" is a good idea. I also thing changing the first sentence to:
"Over the last four decades, cognitive psychologists and behavioral economists have discovered many cognitive biases human brains fall prey to when thinking and deciding."
improves the flow by spacing out the word "cognitive" would be a good idea. Footnoting behavioral economists is likely a good idea also as a lot of people are unfamiliar with that concept.