I think you are ignoring a massive driving factor in both medicine and psychology; they are businesses. Both fields, scientific as they often try to be, are su

I think you are ignoring a massive driving factor in both medicine and psychology; they are businesses. Both fields, scientific as they often try to be, are subject to the sway of funding and profits more-so than other sciences like physics (as an example). Vague and often unsupported claims sell medical and mental health products, making it a profitable venture whether the product actually works or not. I say this as a former student of psych, degree and all. The mental health industry has exploded in the last ten years or so, yet not much new thinking has been brought to the table at all. It's a lot of old standards being repackaged as a revolutionary solution (looking at you CBT) but being sold as mobile apps, hooking people with hope for relief in the form of a convenient, easy-to-use package, the same way medicine does when they add a bit of caffeine to acetaminophen and call it a solution for migraines that you don't have to visit a doctor to obtain. Once a field is driven by profit growth, it becomes this twisted, ersatz version of it's former self and this works because people are so desperate, they'll buy into just about anything you offer that might make them feel slightly better.