If you want to be reductionist, the only difference between eating at a restaurant and cooking at home is money (and also that they’re fundamentally different t

If you want to be reductionist, the only difference between eating at a restaurant and cooking at home is money (and also that they’re fundamentally different things). That doesn’t mean that people do one or the other for purely financial reasons. Also is it still a PhD by your definition if you pay tuition? Or only if you’re paid a stipend?