From Chris Harding
Your article, “Symphony in chaos” (8 April), explaining how digital transmissions can be made with chaotic signals, was the insight of the decade. Eric Kostelich doesn’t say so, but applications to the search for extraterrestrial intelligence (SETI) are very appealing.
I’ve long wondered how mistaken the current drive to detect conventional pulsed signals might be. I think an extension of the work of Scott Hayes, Celso Grebogi and Edward Ott now provides the answer.
