There was one element of truth to Jamie Dimon's diatribe.

Government could shut it down if they wanted to. As a challenge to their monopoly power to issue and MANIPULATE currency.

Government's wont want competition.

You will know for sure BTC is here to stay, if you see action from any government to find a way to tax or otherwise get themselves a piece of the action.

As long as government can get a piece of the action, they will let the action continue