Both horrifying and delightful (read the whole thing):
The brain on the right has so much CSF (brain fluid) that there’s almost no brain tissue left (in at least one cross section) - the center is hollow; at it’s thickest, it’s 2 inches thick. It belongs to a 126 IQ, socially normal university student (circa 1980 - I’d like to see how he’s doing now).
So, we can be pleased to find such resiliency, but my emotional glass is more empty: I may be accumulating all sorts of brain damage (environmental toxins, alcohol, fever, high-altitude hiking, heading soccer balls, colliding in beach volleyball, cancer, prions, alzheimers lesions) yet feel and act apparently fine, as long as the damage happens gradually enough.
