"I believe it was Chris Okasaki who discovered that the thing that helped neophyte programmers go from not getting it to getting it in terms of blocks and scope

"I believe it was Chris Okasaki who discovered that the thing that helped neophyte programmers go from not getting it to getting it in terms of blocks and scopes was semantic indentation." I don't believe a word, and it's not my experience, the indentation doesn't need to be semantic at all. Meanwhile cut&paste, which is heavily used when learning is broken, it's hard to match up indentation levels lines apart, and even tabs-vs-spaces is suddenly a thing again. "Embrace change or get left behind." Don't be ridiculous.