From Brett Cannon <a href="http:&#x2F;&#x2F;www.snarky.ca&#x2F;why-python-3-exists" rel="nofollow">http:&#x2F;&#x2F;www.snarky.ca&#x2F;why-python-3-exists</a><p>I think maybe the Python 2&#x2F;3 split was a huge performance piece on how NOT to evolve a language, but we just copied Perl 6.<p>Do you think a stop the world, forced upgrade is something that should be done in the future? Was it avoidable?