BLOCKCHAIN is more than just currencies. It's about distributed ledger transactions which in reality could be anything from books, to contracts even music distribution. Currently in Australia, the Australian Stock Exchange is implementing their share settlement system (CHESS) on BLOCKCHAIN for example. That has nothing to do with Bitcoin as it is not being used for this, and Bitcoin is far from stable in value, look at its price. It's also very slow to transact compared to other next generation alt coins now. The BLOCKCHAIN world (and notice I am saying BLOCKCHAIN here, not cryptocurrency) will move on beyond Bitcoin. Just as the WWW moved on from the original browser of Mosaic/Netscape. This is a disruptive technology in its infancy, where Bitcoin was the first to prove the technology and show the way, but it will gradually die away and become a historical artifact of a new age.