I believe that we should never trust 100% in any prediction about it, even if that person is presented as the greatest expert or master on the subject, because we must always keep in mind that at the beginning of 2017, when the price of bitcoin was just in $1,000, none of those alleged "gurus" was able to predict that the price of bitcoin would reach $20k some months later. And besides, neither was able to predict the tremendous collapse that the market would suffer next.
If those relevant historical events went completely unnoticed by the "experts", I think none of them has real bases to present themselves these days announcing that bitcoin will reach this or that price by the end of the year.
Those bitcoin enthusiast were really looking for the basis where they predict the movements of bitcoin but don't even think that anytime bitcoin would rise or fall according to the supply and demand on the market.
If it up to me. I don't believe much in the predictions of some Bitcoin expert because sometime their prediction was done for their selfish reason and I only agree and support the prediction which or almost tally with my own prediction.