So I am a big bitcoin enthusiast, but I realize it has problems. Also more and more people are trying to perfect their algorithms.
What if they reach their goals and bitcoin becomes irrelevant?
The price drop isn't showing that great either!
I don't see such scenario in the close future.
Bitcoin was first, bitcoin is crypto leader and will remain leader for many years.
Of course, 10 or 20 years can be very long period of time, specially on Internet so I don't think that anybody can be sure about distant future, 10 years or more.
I think it's possible that some other currency will replace bitcoin eventually but not so quickly in my opinion.
Almost all crypto currencies have price drop because bitcoin is still main entry point for many new users and when bitcoin price drop they withdraw money not just from btc but also from all other crypto currencies.