Would be nice if funding comes through to make c extensions fast on PyPy, then we could try out many what if scenarios descibed in other comments: What if we w

Would be nice if funding comes through to make c extensions fast on PyPy, then we could try out many what if scenarios descibed in other comments: What if we wrote that in pure python instead? What if we moved the computation to a GPU c extension? What if we use a diffent GC strategy?