your a bit well behind the times man! lol
and if your so sure it can be done, why dont you do it? im sure the nxt guys would put a hefty bet on with you that you or anyone cant do it.
If this is your answer to Peter R.s well-founded and well-explained critcism of PoS/nxt, then it's very easy for me to make up my mind.
As for the supposed (not factual) bet you propose: they would have to give the potential attacker access to a key that used to have 51% stake at some point in the past first. I'm willing to bet they
wont do that.
Then history is not on your side. Mark also turned crook at gunpoint.