I realized back in 2014 that there was no way to know what technology would be alive in a few years. The same holds true today. Anything might disappear. Even the more established blockchains. I've actually been waiting for Bitcoin's decline to start since 2013, technology wise it is the first, and that is it. Basically everything else is better these days.
What I decided I would do is invest in projects that wanted to change. Projects that had a team that I trusted to adapt. Back in 2014, I could only see Digibyte as one of those. I was right, although I could've been wrong also. Digibyte has been adapting every year and gets better all the time. Whereas many others just idle and gain through marketing.
Steem is another currency that seems to be taking some actions, but I'm not sure if they are fast enough. They aren't fixing the core problems, they are fixing the headers on the steemit page... But baby steps, I suppose.