What is this?
The scrambler randomizes the letters between the beginning and end of a word. Some people can read the results. Try it with a reasonably long sample of text that has a good number of words more than three letters long.
The sealmrbcr rdezmaoins the ltrtees btweeen the bnniengig and end of a word. Some polepe can raed the rutsles. Try it with a rbeanslaoy long slapme of text taht has a good nmbuer of wrods more tahn trhee lteetrs lnog.