In theory, this can happen. But for Bitcoin's current situation, it's hard to overcome $ 20,000 this year. Because in 2018, the number of participants investing in the cryptocurrency market has fallen sharply compared to the end of 2017.
The shenannigans with the high fees at the end of last year (where in some cases people were paying $1000 in fees to move coins) really damaged bitcoin, and we haven't recovered from that.
It will take a couple of years for the bad memories to fade.
That was a nightmare. Almost no one wanted to make any transactions during that time because of the high transaction fees. They were really crazy, the fees didn’t make it worth it to make a transfer. It has made others think that bitcoin would no longer progress due to those kind of fees unless a solution is made. Along with long confirmation time, bitcoin is rendered nearly useless by then. It’s a good thing it has changed for now even with a lower price.