In my opinion Bitcoin is an archetype of cryptocurrency. It's just a pure speculation. Future are alt coins with some value. There is Eth platform and Neo platform. There is Nebula Network, rock stable crypto thanks to emission mechanism tied to their supply. It's something more innovative than PoW or PoS. It's worth to follow this project imo.
Yes, it is a phenomenal innovation in technology, does in the crypto market, it change the market paradigm of the future. The entry of crypto currency digital transaction create some degree of resistant from either Big time investors and to the government, that's why they are so critical on the Banned, Scammer, Hackers, and the issue on Regulation about the Bitcoin transaction in the market.