'excludes' scipy in that the numpy C API won't be available so there's a massive hill to climb (as best I understand it) to support most of scipy. Re. getting the pypy team to do the whole port - agree that'd be entirely unrealistic! Re. initial port - since there is more than one way forwards and I want to financially support the project (having pledged £600 earlier), I'd like to understand the risks and benefits in the options.