Significant (and relevant) discussion on all three.
(And in re-reading one of those threads to make sure it was relevant I'm reminded that some people don't want me to cross-reference stuff. I find it hard, as I see it as a way of creating value by preventing duplication and re-raising previous discussions. But I'll stop again. Like an addict no doubt I'll start again, but I'll try not to. See my profile for more information (if you care))
And another: http://news.ycombinator.com/item?id=2902496
Debunking: http://news.ycombinator.com/item?id=2906538
Significant (and relevant) discussion on all three.
(And in re-reading one of those threads to make sure it was relevant I'm reminded that some people don't want me to cross-reference stuff. I find it hard, as I see it as a way of creating value by preventing duplication and re-raising previous discussions. But I'll stop again. Like an addict no doubt I'll start again, but I'll try not to. See my profile for more information (if you care))