“René Descartes’ Model of Sensory Perception and the Pineal Gland”
This classic illustration from Descartes’ “Treatise of Man” (1664) attempts to explain how visual perception and physical movement occur via the nervous system. Light rays enter the eyes, converge within the brain, and transmit signals through hollow nerves to the pineal gland — which Descartes believed was the seat of the soul and the center of thought and consciousness. The dotted lines depict how stimuli trigger motor responses, such as raising a finger.
How much of that was seeing what all those decades actually DID, and a generation later realizing it needed to be changed.
Still it’s crappy we are so crappy with our home. I do think we should work exceptionally hard to fix things here. Find real solutions to problems. Else what’s the point of going to other planets? We need those same skills to survive, terraform, geoengineer, know the potential for ecology, etc.