This is a good-but-old post from Dan Luu. There's no date on the article, but an entry in his Atom feed from 2017 references this post. I doubt much as changed

This is a good-but-old post from Dan Luu. There's no date on the article, but an entry in his Atom feed from 2017 references this post. I doubt much as changed since then, so his findings are likely still relevant.