I prefer theoretical physics far more than I do applied physics. I don’t really know why people prefer applied, well I understand that people like to be able to study something that is certain, set and proven, something that has an answer, so if they ask ‘how?’ they get an answer. But then again, what’s so fun about studying something that’s already known and done? I’d much rather try and guess what might be that what is. Asking ‘What if?’ and looking for new things. Sure we have to accept that a lot of things that we guess are wrong, and a lot of them are purely theory, but that’s what makes it so good - it’s not safe like applied physics. And when it comes down to it, everything in applied physics relies on the basis of theoretical physics; that we can’t possibly explain why magnetic fields exist or why galaxies are heavier than they appear, and at least theoretical physics accepts our boundaries in this way and works with them, rather than trying to pretend we know everything be hiding behind applied physics.