that's not the point, because a pool can easily reach that number, and it was proven in the past with ghash
and anyway if all chinese farm work together and merge their huge farm in the future, for whatever reason they could easily surpass 51%...
Could you, or somebody else, elaborate on exactly what such a collection of pools would do? I always read about the "dreaded 51% attack" possibility. What exactly would happen? Some kind of double-spend thing?
Are there any nefarious actions that would go undetected for a long period of time?
My simplistic view is that if the block-chain is being improperly manipulated it will eventually get detected. If that happens then there would be a massive loss in confidence of Bitcoin and the currency would essentially collapse as nobody would trust it's "value".
Is that the most dire outcome possible?
, there are listed the things that will happen in the case of 51%, but it must be done by who reach 51%, it's not magically happen alone