If anyone wants to invest in bitcoin they must look at the past of bitcoin and make decisions from their. bitcoin will always be bitcoin by repeating patterns.
So history is enough to teach everyone.
I Love your statement that anyone who thinks Bitcoin is under performed must be a newbie, generally I see most people complaining about Bitcoin being stagnated, instead of taking such advantage to accumulate as much as they can be Bitcoin might Surg so high beyond expectations.
Not only newbies, but some investors have been in the market for a long time and invest with borrowed money, money that cannot be lost, or investors who are all-in and want to get rich quickly. They all complain and say that bitcoin is under performed, and even blame bitcoin. From their perspective, bitcoin is underperformed because it is not meeting their expectations, but to be fair, they are the ones who are not performing well. Because they don't have an effective investment plan as well as if they calm down and ask why there are so many people who are very happy with what's going on but they can't. Obviously, those who say bitcoin is not doing well are people who have failed with their investment strategy because bitcoin is much better than they thought.