I don't think they care so much as you think about 'takeoff'. It's mostly a research project in programming pedagogy. They're trying to make lisp features more

I don't think they care so much as you think about 'takeoff'. It's mostly a research project in programming pedagogy. They're trying to make lisp features more accessible to students in universities. A takeoff would sure be appreciated, but the immediate goal is not a takeover of the industry. The author (M Flatt) is an incredibly gifted and productive programmer, btw.