golem has an application to back up its crypto currency just like steemit. Just acting as a currency to transfer value was solved by bitcoin. Today's crypto must have some blockchain functionality that supports specific applications. For etherium, the primary application is smart contracts. Steemit has social networking. Golem has distributed computing. If golem succeeds a cell phone could potentially perform faster calculations than today's fastest supercomputer. I also like lbry for the same reason. Besides application specific functionality they also act as a currency with faster transaction times than bitcoin. The only value bitcoin has now, as I see it, is that it has been adopted by so many currency exchanges and has evolved into a legitmate currency. Other currencies have yet to reach the market penetration of bitcoin. But since other currencies can be traded for bitcoin there is no reason to hold bitcoin in a portfolio where one is looking for value, potential value, and returns.