My gut feeling about bitcoin is that, yes it looks like a bubble about to happen, yes some governments are rejecting it but I think it will hang around for long. It recently technically found support around 700 and has resumed uptrend to recent 900, I think it will rally higher and higher as people continue to call it a scam possibly to 10000 before crashing down. If at all there were bitcoin futures, I wouldn't advice shorting it for all its worth right now
On a long enough timeline, the life expectancy of everyone drops to zero.