I guess you would had said the same thing years back if you saw the prediction of current value when bitcoin was trading below three digits. Bitcoin has a unique features that make it easy for any trading value to be achieved, timeframe used to achieve such value is what can't be predicted accurately but the price can be speculated on. The demand of bitcoin has been steadily increasing, we're yet to see the full potential although the specific figure highlighted in the OP might not be possible in this current bullrun.
As for the bullrun, it could possible last untill the end of the year and early next year before the dumps starts having it's effect on the market. For bitcoin to go as high as many speculators are expecting, we'll need more that just one bullrun. The next bullruns would definitely see bitcoin trading above $100k.
Even though I definitely think bitcoin will be 50k, 100k, 200k, 500k, 1 million dollars and will keep on going for a very long time and not stop and I think that Is quite possible, I also understand why people have doubt over why it may not happen as well. The reason is that from 1 dollar to 100 dollar just a billion dollars was enough, today in order to go from 40k to 50k it requires over 11 billion dollars, and that is the difference of 11X more money required for 1% of the increase difference, so it gets harder and harder.
We just have a huge difference when going up with the amount needed, going from 100k to 110k will be even harder, going from 150k to 300k will be basically a HUGE corporations level of difference, like nearly a whole Samsung difference, and that Is way too much for some people. I just think it is possible but I also understand why they think it Is not possible.