Never even noticed the spelling. Then again, I read the following effortlessly.

AOCDRNDICG TO RSCHEEARCH AT CMABRIGDE UINERVTISY, IT DSENO�T MTAETR WAHT OERDR THE LTTERES IN A WROD ARE, THE OLNY IPROAMTNT TIHNG IS TAHT THE FRSIT AND LSAT LTTEER BE IN THE RGHIT PCLAE. TIHS IS BCUSEAE THE HUAMN MNID DEOSNOT RAED ERVEY LTETER BY ISTLEF, BUT THE WROD AS A WLOHE.