Mendel
image by Mike Rosulek
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It's a classic question: if Charles Darwin had known about Gregor Mendel's genetic research, would Darwin have realized it was the missing piece he needed to explain how individual variation was inherited and selected? Was it simply bad luck that Darwin never stumbled on the right experiments? Or was Darwin so constrained by his own perspective on inheritance that he couldn't have seen the importance of Mendel's work, even if he had known about it?
Jonathan Howard has written an intriguing overview of this question. He argues that…
Perhaps we are all subject to falling into the trap of what I call the Hydraulic Theory of Everything. If you eat more you will be bigger, if you eat less you will be smaller. Emotional states are the continuously varying outcome of different levels of a set of hormones, forming "happy" or "stressy" or "angry" cocktails. Your brain is a vessel into which life pours various elixirs. Too much of one thing, and there will not be enough room for something else. Even political arguments are hydraulic. The 'balanced' middle view between two arguments is like the mixture of contrasting primary…