a central bank says it is the sole provider of money. backed by law, backed by government, backed by a lot of economic, political and even military power. so other 'artificial' currencies are backed by ... nothing. well, ok, by the people who use it.
the central banks say one can only trust their own system. to them bitcoin is not trustable. if it is not trustable than it cannot be a severe threat. if they say it is a severe threat, than they admit it is trustable. but they will not want to admit that it is trustable. so why/how outlaw it then?
what do you think?