When you first start to study a field, it seems like you have to memorize a zillion things. You don’t. What you need is to identify the core principles — generally three to twelve of them — that govern the field.
The million things you thought you had to memorize are simply various combinations of the core principles” Keep that in mind when getting frustrated over complicated formulas and methodologies. Inspired by John Reed. Emerge yourself in a wide variety of industries as most are guided by similar principles — even more relevant in building businesses, creating value and investing in companies.
P.S. Looks at the growth trajectory of civilization in the past few millenniums (1000 year), back then only the nobility have access to complex instruments like the armillary sphere to read time (we don’t really treat time like commodities anymore).