El comunicado del canguro

"Professor Jones had been working on time theory for many yeras.
"And I have found the key equation," he told his daughter one day. "Time is a field. This machine I have made can manipulate, even reverse, that field."
Pushing a button as he spoke, he said, "This should make time run backward backward run time make should this," said he, spoke he as button a pushing.
"Field that, reverse even, manipulate can amde have I machine this. Field is a time." Day one daughter his told he, "Equation key the found have I and."
"Years many for theory time on working been had Jones Professor."

("The End", de Fredric Brown)