In Feb. 14, 2010 Satoshi Nakamoto said :
Im sure that in 20 years there will either be very large (bitcoin) transaction volume or no volume.
Current transactions volume :
https://blockchain.info/fr/charts/n-transactionsWhat do you think about what Satoshi said and how it's going to be in 2029 . As we can see on the Blockchain.info chart volume seems to be increasing with the time however it doesn't seem to be enough , it's not that big ...
Well about his theory, all I can say is that if this happens then I think it is alright at least he did not theorized that it will be erased and be gone. But it is just a theory there are chances that the value of it will rise more than we could ever imagine.