re: Poker & Poker styles?
Yes, it is possible the win by playing very tight* (rock), but I believe it to rely too much on luck and winning big pots: if you wait for premium hands and they get cracked (as they all do sometimes), you end up losing a lot. I fevor more of a "play the players" attitude nowadays.
*I once spent 2 hours folding EVERYTHING in a home game (10 handed) that was more like a bingo than a poker game
. Blinds increased when people busted out and since everyone was exhanging chips, I still had a medium-low stack when I woke up and started to tear (bluff) everyone apart with premium holdings such as 3-4 and 7-10. I won that game and it went to 6 handed to heads up in 45 minutes after I woke up (with chip lead...).