Basic laws of physics, sure. But how to process the loss of your trust in humans because of the specifics of the abuse you received from your abusers at the ages you received it (schoolmates on the playground, older sibling, anonymous assailants on the street) isn't all that well handled yet by science and the few practitioners that exist.

How to refashion your wants to fit within the reality left after someone ran you over on the way to your wedding and you lost your legs? That's personal.