This isn't intentional - As the authority on the network (so to speak), clients will believe the pool's hashed transaction block over any other. That means the pool will win all transaction conflicts, and get the rewards.
Epic confusion.
A 51% attack is then the attacker blockchain voluntarily ignore every other blocks. An honest 51% holder would accept the blocks found by other people.
Well I'm sure as hell confused now if I weren't before. Are you talking about a blockchain fork, pseudo blockchains and such? No... wait, that can be done if the powerhouse pool wanted to do such a thing... but just to make sure I understand.... you're saying that if the pool with the majority of computing power is honest, it will accept other pools' blocks? Forgive my confusion... I just don't understand what this has to do with the price of rice in China.
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dont believe the hype
the possibility of a 51% attack has been analysed ad hominum already and it will not result in everyones previously saved coins
being suddenly worth "nothing" as someone just claimed

this has been talked about for years even when satoshi was still an active developer i think and it hasnt changed the general opinoion much
if there was any chance all the previously mined btc would become worthless due to a 51% attack i think they would have factored it in already

its not like were talking about monkey nuts here ,people have millions or even possible billions at stake so i think theyve analysed the risk sufficiently for now anyway