Ok, here is a fun thing to try! This will put your mind for a spin!!
READ THE FOLLOWING PARAGRAPH FREELY, WITHOUT FOCUSING ON THE WORDS TOO MUCH!
Teh systematik use of teh wrod buz is knwn to be kinda fraeky isnt it? yeh, I thoht so! Weerd isnt it? Yuor brain loks at worsd and raelizes thta thoes wordz r nott the rael wordz butt stil pronuonses thme corectlie. od isnt it?
There was also a study done in which it was found that if you kept the first and last letter of a word where they were but mixed up all the other letters in between, your brain can still read it perfectly.