PyPy is the most popular alternative implementation of Python, but it falls short in term of compatibility with C extensions, this talk is about why C extensions are so hard to support on alternative implementations and why they prevent Python from improving.
Recently we've seen the rise of new technologies like Julia, those have the ability to build a new ecosystem on a clean slate and thus be better than Python in some aspects. What would it take to be as good as those technologies on those aspects without loosing all the things we love about Python? This talk will describe my perfect future where Python keeps getting better, gets to keep it's great set of libraries, where PyPy fits in that future and why C extensions are a big road block.