Never mind, I managed to export my results by selecting all the text in the REPL and choosing File | Print and printing to PDF, then copy-pasting from the PDF. Phew.

so, you managed to save the answer to Life, The Universe, and Everything. nice

haha yup!

Another perspective - some people write a large percent of their code inside comment blocks and appreciate that it is highlighted like normal code.

use #_(comment ,,,), so even if the #_ is removed accidentally, the program inside won't run, when you load the file.

I'm one of those people, who write a lot of code inside comment blocks and I think it's nuts not to do so, because it's just too easy to accidentally load a source file, full of top-level code, which might be side-effecting. I guess most of the time it would throw some exception and most expressions would be just impure, but not side-effecting, but still feels unnecessary risk. I can imagine that others' tooling doesn't make it easy to accidentally load a namespace, but wouldn't that mean that accessing such a basic operation is not as easy as possibly can be?

oh right, I haven't thought about #_ in front of (comment... ). Thanks

I’m not sure, it does look like the error Jeff posted. What do your tests look like? Are you using any odd test forms, or just deftest?