My criticism was that his example of 150 years' worth of experimentation was captured in a single personal experience. Unless he's at least 170 years old, what

My criticism was that his example of 150 years' worth of experimentation was captured in a single personal experience. Unless he's at least 170 years old, what he said was basically ridiculous. His reply is slightly better, but I'll get to that in a direct reply to him.