Brain twister!

This floats around the internet, but it's always fun. Do you know why it works? Can you raed this? Olny 55 plepoe out of 100 can. I cdnuolt blveiee that I cluod aulaclty uesdnatnrd what I was rdanieg. The phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it dseno’t mtaetr in what oerdr the ltteres in a word are, the olny iproamtnt tihng is that the frsit and last ltteer be in the rghit pclae. The rset can be a taotl mses and you can still raed it whotuit a pboerlm. This is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the word as a wlohe. Azanmig huh? Yaeh and I awlyas tghuhot slpeling was ipmorantt! If you can raed this forwrad it. It works because our mind processes information in chunks. If you read a lot, you've trained your mind to absorb chunks, in this case word-chunks. The more familiar words will be recognized in the same way you'd recognize a single letter that was drawn backwards. For other, less familiar words, you'll read over them and get clues based on their position within the sentence and your knowledge of grammar.