Didn't Ian Sommerville actually say in a blog post that he thought he had "wasted his time". Very sad. SE is an amazing aspiration, but I often think we've see

Didn't Ian Sommerville actually say in a blog post that he thought he had "wasted his time". Very sad. SE is an amazing aspiration, but I often think we've seen half a century where it's impact has been negligible outside a handful of high stakes safety critical systems (and not even there these days: Boeing etc)