This is my last column for Technology Review. Really. It's all over. Why? New editorial directions, new opportunities. Perhaps it's time for a different take on the evolving politics, culture, and economics of innovation.

But I'd be foolish to pass up this final chance to discuss what I've learned -- and unlearned -- about innovation since this column first appeared in Technology Review's January/February 2002 issue. My convictions about what innovation can and should mean have changed dramatically. I've wanted this column to be a forum for exploring the real guts and viscera of the innovation process -- not the polite entrepreneurial fictions about how brilliant ideas ultimately charm reluctant marketplaces.