If you are looking at the long term then yes, bitcoin is going up. What i was pointing at was the many dips bitcoin had before. Recently it went from 2200 to 1600 because of the fork that happened. Bitcoin has had many fall backs wich people used to make profit.

It tends to dip 500 dollar in only a few hours time... for example if you sell at 3500 and bitcoin has some bad news that day it would probably dip a few 100, buy at that point. When bitcoin reaches 3500 again you made profit. Simple as that.