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.
Predictions are the result of analysis to get initial signs for example, fluctuations.
Fluctuations have known as the rise and fall of bitcoin prices, defined as a situation where bitcoin's being traded by a large number of people at a significant level. However, we are also allowed to not believe in the results of predictions because not a few predictions which ultimately are misleading.