What kind of progress has been made in crypto currency adoption?
After 10 years there really is nothing to show for it.
I mined a few coins in 2011 and they were quite useful in the 2013 boom when there were various merchants experimenting with adoption.
Since then the merchant adoption has only gone down.
Bitcoin will continue to have value because of its use in very shady transactions:
* hard drugs
* avoiding capital controls(China, Russia etc)
* extortion, blackmail
* crypto scams
* pure speculative/gambling vehicle
Sadly, there is no cryptocurrency which is useful as a general purpose e-money.
That is: as a buyer you get no protection and pay more as compared to regular credit card. Why in the world would you use it unless you want to use it for something shady?
Now one could argue that capital controls and hard drugs should be legal but that doesn't change the problem that bitcoin and other cryptocurrencies only exist to serve markets that nation states deem illegal.
Compare this to regular gold and cash.
Finally, the big problem is the energy use. If BTC runs to 50k-100k then the energy consumption used for mining will surely surpass that of a medium sized country.
If speculators push the price of BTC to say 500k, then the whole world will stop and half the energy will be used to mine BTC.
It is ridiculously silly yet dangerous.