Previous discussion: https://news.ycombinator.com/item?id=10731023 https://news.ycombinator.com/item?id=10731023 Resubmitted because I have thought about this

Previous discussion: https://news.ycombinator.com/item?id=10731023 https://news.ycombinator.com/item?id=10731023 Resubmitted because I have thought about this article often since I read it 8(!) years ago.