There are very, very, very, many "highly educated" people who think that human beings are incapable of grasping the vast scale of the cosmos.

I don't know if they mean "everyone", "everyone, except, of course, me", "everyone and isn't it a shame that they don't even realize it?", "everyone who isn't specially educated".

I am perfectly capable of internalizing and understanding a billion, trillion, or even quadrillion of something-- be they meters, light years, number of atoms of something, or grains of sand, thank you very much.