It's not just a problem of not being able to predict the future, it is at least as big a problem to interpret the present. Every understanding of the present is necessary just a point of view, taken from a certain perspective and based on a limited amount of data. So we all interpret. What makes bitcoin so incredibly strong is that it is basically a community of people who - at least with regard to money - follow the same hermeneutic rules, and since these kind of hermeneutic communities is the most close you can come to a truth claim, the undebatable nature of these are a really strong selling point!