Post-Modernism was a reaction against Modernism. It came quite early to music and literature, and a little later to architecture. And I think it's still coming to computer science.
When I announced the development of Perl 6, I said it was going to be a community design. I designed Perl, myself. It's limited by my own brain power. So I wanted Perl 6 to be a community design.
I think the way IBM has embraced the open source philosophy has been quite astonishing, but gratifying. I hope they'll do very well with it.