[muvlon]

Most of the points listed are hardly considered lispy anymore these days, Python also has most of these.

Where Ruby's lisp lineage really shows is the fact that it's got Kernel#callcc, aka call with current continuation. It doesn't get any lispier than that!

[t0mpr1c3]

`callcc` was obsoleted about 10 years ago. I don't know if it has been removed yet. https://bugs.ruby-lang.org/issues/10548