Smneooe rinemded me rtlenecy of
the qtuie aihntssonig fact taht as long as you keep the frsit and lsat
letrets of each word in the rhigt pcale you can mldude up the ltertes in
the mldide of the wdors and the wolhe thing wlil still be pfrlceety
easy to usnrnedatd I wtore a prrogam to try this out and here is the
rulest of a tset run. You sluhod esialy be albe to follow waht the
mgsaese was
(My program can't handle punctuation properly yet but I can sort that out)
Not all sentences are equal though, here's one I tried to make harder
Riadsnonmig ieionrtr lrettes aftcefs cioepmnehrson mmiianlly cotiigvne scietsints dveiscor
There is a really interesting article about all this here.
It discusses the origin of the meme and then goes on to consider things
like what the underlying mechanisms might be, whether reading is
slowed, what sort of sentences might affected more and which less by
jumbling interior letters in the words, whether some permuation of the
intrerior letters make more difference than others and so on. An
interesting read, though I haven't finsihed digesting it!