You're suffering from the non-sequitur fallacy, which is you, as I pointed out on page 1, incorrectly concluding that the paragraph you used to start this thread was saying anything about the "difficulty" of a stock recovering 100% after a 50% drop.
It did not.
What the paragraph is pointing out is that some people seem to blindly sell their stocks after a large drop at an incorrect price point, thinking they have recovered their losses. It specifically states that some people whose stock drops 20% one week and then see it go up 20% the next week might think they will be able to sell at break even at that point.
The paragraph/article says NOTHING about probabilities. This whole thread is YOUR folly, in that you are trying to use the wrong end to justify your mean.
There is absolutely nothing wrong with what Investopedia wrote there. The problem is YOU.
The article implies that the stock has only dropped 50% but has to recover 100% for you to gain your losses back, therefore implying that it is somehow harder for that to happen when it is not.
