Trying to get a grasp of history and making some predictions. Improvements are welcome! I always thought that price might stabilize over time but I'm not so sure any more.. Though I don't see any reasons yet for Bitcoin to stagnate.
2018: Serious cryptocurrencies development and altcoins finding their purpose, large network scaling, big fresh investors, price boom v.2.0
2019: Serious push for mainstream adoption in some countries, mixture of cryptocurrencies and interoperability
2020: Some Bitcoin and banking (FIAT) systems cooperation (banking long-term survival plan), serious world wide regulation and legalization attempt, Bitcoin banks (for legally lending Bitcoins for interest)
I don't see that happening, you shouldn't give predictions about the future to avoid disappointments