Of coruse will be bitcoin. Like what just happen in last few years it goes up like rocket from earlier 2016 till now already grew up 10 times... it' just on 2 years ... so could u emagine if the price now is $4000 in 50 years it could be 250 times bigger than what you holding first so it will be $ 250.000.000 ...
Yes i agree but we can see a good change in gold also. It will also increase but not like as bitcoin @davean
Yuo it increase but too slow and it's bit hard to trade them ... and in gold hard to get a cheap price .... but both is the same long term investment things.
@daveandrean yes it's a bit slow but a good way of investment for those who dont know about cryptocurrencies.