I see 10% people worldwide using Bitcoin after 20 years. Just like Silver which was $80/ounce in 1980.
I'm sure that in 20 years there will either be very large transaction volume or no volume -- Satoshi Nakamoto
Bitcoin at $600 will also be valuable and will have long term future. Silver at $17/ounce is a precious metal.
I'm very excited for that i don't think so what happen but i know in future they need bitcoin to transfer money and buy some stuff you should be optimistic and be ready for the technology because a great has a great resposibility. Be responsible in using bitcoin.