this is rumor like most thing but if this comes to life in five ot ten years no matter who knows what will be at the end.
to be honest dont like this cuz it will be very bad and have some bad feeling that government will be involved in this. just a hunch
Well, governments always find out how to "bypass" certain limitations, and it would only be a matter of time before they make use of quantum computers to break Bitcoin and other cryptocurrencies encryption. It may put at risk the long-term survival of altcoins, as well as the pioneer cryptocurrency.
But in the meantime, we can enjoy all the benefits that Bitcoin and cryptocurrencies provide. Depending on your use (store of value or everyday transactions), there is an ideal cryptocurrency for it. I think that that in general, the altcoins that remain in the top 10 market cap rankings are prone to survive.
Most recently, Dash has been increasing in value which is a good sign for those long-term holders of it. The only thing that I'm concerned with is that it would become more expensive to be able to get 1000 Dash for a masternode. Just sharing my thoughts.