I mean, first of all, let me say whichever superhero first came up with the idea of wearing a cape, he wasn't really onto anything good. The number of times I'm treading on that damn thing or I throw a punch and it ends up covering my whole head. It's really not practical.
You [the teacher] do not merely insert a lot of facts, if you teach them [the students] properly. It is not like injecting 500 cc. of serum, or administering a year's dose of vitamins.