"The rset can be a taotl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Amzanig huh?"

However, "a total mess" can only be certain patterns("randomly", but not eg in reverse order).

And you get a worse result on the Stroop test after reading such a text than after reading the same text with correct spelling. In other words, such texts generate akrasia.