If you think bitcoin will go higher and then later will collapse then it’s will be fair enough to also think the dollar will go high and someday collapse. Bitcoin scarcity will keep its value for a longtime.
Bitcoin went till 19600$ and then almost fell till 16300$ but now bitcoin has started to bounce back well. It is 18200$ so after a downfall of more than 3k+ we are seeing that bounce back is quite strong and if it can sustain over 19k then we are bound to see ATH in Dec and probably in 2021 we might even enter with 20k+ as well.