I emailed him about his book Machinery of Freedom in my 20s (15+ years ago) and he was willing to engage in good faith debate with a complete nobody on the inte

I emailed him about his book Machinery of Freedom in my 20s (15+ years ago) and he was willing to engage in good faith debate with a complete nobody on the internet who emailed him out of the blue. He was not remotely pretentious or insufferable.