I like to think about knowledge as coming in two types:
First, there is knowledge like physics, math and the like, which is about the inner workings of things. As such, it easily tends to become abstract and difficult, but in terms of volume, you need only a little to be able to do a lot.
Second, there's knowledge that's really specific: The name of a place, the date of an event, how many stars are in the night sky. The answers are mostly rather easy to congest, but there's an almost unlimited volume of them, and each on its own has little worth.
What is the best way to describe these two types of knowledge?
For example, deductive knowledge would probably fit well for #1, but it's opposite 'inductive' doesn't really fit #2.