I think using what you already know remains a choice that is very hard to criticise. But we didn't have to learn that, did we? Beyond that I think there is mor

I think using what you already know remains a choice that is very hard to criticise. But we didn't have to learn that, did we? Beyond that I think there is more to unlearn than to learn from the history of the Y2K batch of startups. The economics of essentially everything related to writing, running and distributing software have changed completely.