No one really knows how far Bitcoin goes, is the rally done?  and when the alts will start a rally. However, one thing is for sure, Bitcoin is not forever increasing so expect that there will be correction and downtrends will come so we better prepare for that. You can create your own prediction if you want to and yes there's a chance it might happen but not a hundred percent certain. Upon dealing with this uncertainty, one strategy that could help you a lot, like making a target goal price or exit point. To put it simply, do not be greedy.