A lot of people do not want agree that surviving in the market today requires every trader to come to terms that they are trading on probability and at every moment of the trade there are series of different possible outcomes.
As a trader, the best you can do is find the most likely scenario based on the data you have and understanding the risk involved too.
Choose the best probable outcomes that favors you to avoid stories as rekt.
While you are correct very few people have the capability of thinking like that, whenever they make a prediction they think that prediction needs to come true however we know that is not the case, we know that if you predict the price is going to go up it could always go down for reasons that are impossible for you to understand and you just need to accept the outcome and accept that particular trade is going to be a loss but very few people have the maturity to do something like that.