From van Gogh to Huxley, and lots of subjective questions but it's lacking data. So we can't answer this empirically, or at least, the article doesn't. And it's

From van Gogh to Huxley, and lots of subjective questions but it's lacking data. So we can't answer this empirically, or at least, the article doesn't. And it's hard to read because of it, just jumping around the various, well, anekdotes. I guess the only really valid answer that follows is this: "who knows..."