> Both marks come from Scheme, where [...]

Reminds me of an email I wish I still had.

Circa 2000, I wrote that I was leaning towards moving to Scheme, for more rapid R&D work than I could do in Java.

Some nice-sounding person I didn't know emailed me from Japan, to mention a language I hadn't heard of, called Ruby.

I don't know whether the person was Yukihiro Matsumoto himself, but it's a small world.