in 2013 it went up to $1000 which was huge high at that point and suddenly fell, and it took another 4 years to go to that price again.... same scenario here it went up to $20 000 in no time which is not natural at all. and suddenly has fallen down to $7000 now. i hope if its to hit $20 000 ever again, it will take another 5-10 years. whats your thought