There’s no intrinsic value to fiat currency. It’s pieces of cotton we collectively agree mean something?
There may he no intrinsic value to the digital currencies but the underlying block chain tech some of them use is revolutionary and can’t be disconnected from them since the currencies power them.
This BOE guy is bricking it because block chain tech can make banks redundant for huge swathes of the population. Transactions are faster by magnitudes and don’t lose commissions on the blockchain.
Only a matter of time before a killer app comes out on one of the programmable chains like Etherium and mass adoption begins imo.