There is no way of knowing what will trigger a Bitcoin bull run, but a Glassnode report on April 18 has spotted “a large amount of coin supply” hovering between $38,000 and $45,000. For traders who believe that BTC will hit $50,000 in July, there is a low-risk options strategy that can be used to launch a long bullish bet.
That may be applicable to other entity but for Bitcoin, if we look at its history, we can always observe that the Halving always trigger the shifting of bear market to bull market.
It is understandable that people tend to follow the most active entities in the world of Trading since having experience in this area people place their trust in them,
This is because most active traders use trading bots and it follows a certain set up so it is not surprising if it looks like most people are following most active entities.
Bitcoin is a cryptocurrency full of possibilities, that is why it is so volatile that it's up today. and low tomorrow, but many investors usually see the movements of these and could even predict the future of this (not entirely true but they are close).
I think the italicized is an overstatement, it is simply speculation because lots of those so-called "predictions" are often times put to shame by the Bitcoin market.
It is always good to take advantage of the bearish market simply because we can buy Bitcoin at a discounted price. If we have a sitting extra funds and won't be needing them for a long period of time, investing in a tested market is the best thing.