But the question is, can bitcoin really substitute dollar or other currency sometime soon?
No. And if it does it won't be in our lifetime.
Not until the confirmation issue is resolved. I wouldn't want to buy a chocolate bar and have to wait 10-30 minutes until my payment was confirmed. I want to pay and go instantly.
I am sure you can buy vouchers with BTC, and for quick snacks I am sure that pretty soon a BTC Visa will pop up (if it didn't already).
I dont know, but ask yourself this, would you want a world where everyone is scamming everyone and there is no recourse?
So far, thats what this community has proven unquestionably w/ btc =P
Sure, scams happen now in fiatland but nowhere near the ratio they happen in btcland =P
True and false at the same time.
The scams with BTC are constantly increasing but.... -->
https://www.youtube.com/watch?v=iFDe5kUUyT0Apart from that, in fiat land there is things we don't know because transacting in fiat is TRULY anonymous.
Nobody knows if you got $10Mil in your basement.