[tgv]

One of the problems is that we can't agree on what proper science is. Another one is that even if we do agree, we don't know how to do it. Yet another is one is that many people listen to social scientists and take their word. Economy is a pretty clear example, but there are also cases of statements by social scientists taken as authoritative by the general public, ranging all the way from mental health to (social) injustice.