No one can guarantee the correct prediction of Bitcoin price. Sometimes the prediction may be correct but it will never be regular. However, it is still granted that Bitcoin creates a new ATH after halving in every 4 years circle, then it does not matter how expensive the previous ATH was. So there is an opportunity to easily gain a lot of profit here.

No one can predict market movements with any certainty. However, billionaire investors can sometimes cause market movements by buying or selling Bitcoins in large quantities. Otherwise, a normal investor can never cause market movement and cannot guarantee market movement at any way, no matter how expect he is on crypto industry