it is not a prediction or future telling. it is an observation based on current ongoing events and all the history that bitcoin had.
Past performance does not provide any indication of future performance.
you don't need a crystal ball to know it either you just have to take a good look around to see the growth is happening all around you while more people all around the world start dumping their fiat to get bitcoin in return.
What's going on here is that you are getting immersed in Bitcoin. So more people around you are using Bitcoin because you are surrounding yourself with bitcoin users. As an example, I am a gun owner and a hunter. I also surround myself with people who share my lifestyle. Based on my limited experience, I could claim that most people own guns and hunt. But that would be misleading myself.
And anyhow, even if we are to accept that more people adopted Bitcoin n the past and more people are adoring Bitcoin now, none of this should be accepted as an acceptable prediction that more people will adopt Bitcoin in the future.
I do hope that more people turn to Bitcoin. And I do hope that Bitcoin gets accepted by PayPal and Amazon some day, even at my local coffee shop too. But my fear is that a large number if people will be turning to paper coin and b