If the core developers have committed to remaining C-ABI compatible with py3 until 2023 then there's basically no way anyone could fix the GIL. It would mean br

If the core developers have committed to remaining C-ABI compatible with py3 until 2023 then there's basically no way anyone could fix the GIL. It would mean breaking ABI compatibility on the garbage collector and the interpreter. I find this aspect of the proposal kind of disturbing since it effectively prevents anyone from even trying to solve concurrency problems in mainline CPython for another decade.