No one can stop a technology who's time has come

It was true then and it will be true now:

(Source: https://twitter.com/Shivfreespirit/status/1094162532493709312)

I am not sure if the current crypto's will end up being used when this technology officially takes over...

But at this point the cat is out of the bag and the genie is out of the bottle.

It is only a matter of time now.

Do you think anyone could have envisioned what the letter would eventually turn in to?

People would have rolled over in their grave if you told them what it would eventually become.

And don't you think paper, ink, and other letter related companies would have drug their feet?

That is exactly whatever is doing that benefits from the current financial system.