That's the problem with the volatility of Bitcoin. There is no exact time when it is going up or down.I told a friend of mine, that has over $500 worth of Bitcoin stored in his local wallet. That Bitcoin is not dropping down any time soon. Base on the pandemic entangling issues, people are still investing heavily on it. He didn't believe me, he withdrew his funds last week when the price was around $27k. Now look at the new price volume, peaking at $34,552.50, its still going strong. He might get a rethink why he withdrew his funds, at least his saved Bitcoin could have added extra value by now.
Don't you think, Bitcoin will rise above $50k before june, with the way people are constantly investing on it??
If your friend know the exact time that it will rise, surely he did not sell his cryptocurrency. If he also knew the time it will go down, the right time to sell can also be executed.