As scarcity increases, so does the price.... Mtgox was an exchange... that has nothing to do with a protocol and its security. You should rethink a bit of what you just said here.
I agree scarcity drives price when demand exists. It is why I speculatively hold bitcoin right now. What will drive the demand for bitcoin if everyone moves to a bitcoin 2.0 chain?
We arent talking about 2.0 chains (like ethereum) we are talking about sidechains. They exist on the bitcoin blockchain.
By 'bitcoin 2.0 chain' I simply mean't a sidechain which was superior to bitcoin.
This will be my last post tonight as I don't want to spam the thread. But my point was simply that if a bitcoin sidechain becomes popular, value may migrate from the bitcoin chain to side chain. If 'there can be only one' then a very significant number of coins on the bitcoin chain may become locked resulting in actual use of bitcoin being very limited, with global transactions occuring on the side chain instead.
I cannot see in that situation that simple scarcity alone will maintain a high price, simply because demand is clearly for the side chain usurper, not for bitcoin anymore.
Anyway, good night all. Thanks for the interesting thoughts guys.