Reading words and letters

From Michael Russell, who hails from College Station, TX:

I cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The
phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearch at
Cmabrigde Uinervtisy, it deosn’t mttaer in waht oredr the ltteers in a
wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be
in the rghit pclae. 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? yaeh and I awlyas tghuhot slpeling was ipmorantt!
if you can raed tihs psas it on !!