Be Cautious about Soft Sciences

Some areas of study are very difficult to get sure answers in.
See: the "replication" crisis in many of these fields, as well as the disappearance of tests with negative results.
Because it's hard to prove or disprove claims in these topics, it's easier for people to say their own theory is correct without being easily disproven. So what we should really do in these cases is remain unconvinced unless someone does the most intense and correct Bayesian analysis of all available data, basically, and compare all competing theories.
Here's some of the areas with this difficulty, where people will try to sell their own ideology:
* health
* economics
* sociology
* psychology
* political science, policies, politics
Some ideas seem like hard science, because they are directly related to hard science, but are not yet settled (the confusion here might stem from some people's ignorance of the distinction between premises and conclusions):
* the equations of quantum mechanics have been proven to be accurate (that's hard science), but there is no agreement about how to interpret what is happening, and no theory (explanation for the facts, "theoretical science") has been proven so far. Worse, many people will go even further and claim that quantum physics proves important conclusions in the soft-sciences such as sociology, politics, and health.
And, of course, plenty of things that aren't even sciences:
* futurism
* success in life
* even, alas, morality