Strength in Quick and Blitz Chess = Strength in Turn-based?



Blitz can lead to bad habits. But is very fun! =D
The best players in slow games are the best blitz players. But we can't say that a very good blitz player is a very good slow player.
Quite possible. As i said earlier, it's probably best to have a good mixture.
First it depends what do you mean by blitz. Is it 3 or 5 minutes as on ICC?
Secondly, I think that, if a GM (who knows hundreds of position by heart, who would spend almost no time in a theoretical endgame) could indeed play 3-5 minutes blitz, a normal player should not. Well, one could play just for fun, but they will not increase his strength. As an average, when playing online, it might be good to plat at around 15, 15+10seconds. After all, it's not OK to spend 2 hours in a game, while your opponent might use a computer to beat you. And there are "centaurs" everywhere (including on ICC).

"I don't think time was composed for practical reasons."
Well, it's not really a matter of opinion, but of historical fact.
"I'm not convinved that time isn't a part of chess"
It IS a part of chess if we decide to make it a part; but it's not an Element of chess. The distinction seems pretty clear.
"Why is lightning or blitz less pure than long time controls?"
Pure is an interesting word I used for want of any other wordat the time, and now, thinking it over, I believe it's the correct word - Pure in the sense that in classical or longer time controls the essense of the game is more in the moves, and less in some artificial constriction (the time control). You can certainly argue whether a time control improves or diminishes chess, but you can't argue that it's a necessary ingredient - therefore, the more emphasis that is put on time, the more artificial and less pure the game becomes.
