How can bitcoin 2.0 be developed when bitcoin 1.0 does not even exist? Bitcoin in it's current state is a glorified hack. Ethereum is something that would work with a fully developed, standardized bitcoin. Why are people jumping so ahead into the future already?
Yesterday I downloaded the new armory client and it took about an hour running the laptop at maximum load for it to compile whatever it was doing. The computer got so hot I thought it would begin melting. This is 5 years in.