Predictions, can be right and wrong,
In prediction proverb can be meant as a systematic process method that is often used by humans in view of past experience, it could be likely to happen or the opposite.
What you say is a scientific method of using data in the past.
This can also happen in the future, especially on the price of Bitcoin.

For example, if you do one job to plant one tree, you estimate that the tree you planted will grow as high as 100 meters, and it could also be the opposite that the tree you planted will die or only grow one centimeter.

You can write the price of bitcoin next year {X ...}, it can be reversed at the level of {Ax ...}.
What is clear is that we wait, Bitcoin as you mentioned.