yes of course I think this bitcoin is a strongest currency in the world,but world bank doesn't support it because if bitcoin open then world bank losed, but many country support bitcoin and use bitcoin and bitcoin blockchain.
Definitely people need to understand this fact that crypto currencies have better future in this world. Everyone knows that in future everything will be technical and so as the currency but this does mean bitcoins are the strongest currency now.
Yes it will be but in the time when every other thing is technical too. Now a days, it is just best currency of the crypto world and this means it.