Bitcoin reaching $20k before 2020 is a long blurred shot even though i know how volatile bitcoin is. The market has crushed way hard to rise up that sharply. However, this is quite achievable after the upcoming halving of bitoin rewards. We have seen the price of bitcoin going higher especially after it's halvings. Let's wait patiently and see what happens by the end of 2020 and not before 
I wouldn't be so sure about this. $20k dollars is just $12k away especially when we look at broader perspective and previous historical performance. After all of previous crashes we saw a pretty significant price recovery and then after recovery phase there was many people literally throwing money at crypto exchanges