re: He can't. That was the whole point of the statement.
That's why I was hoping to get the intellectual juices flowing here. Even hundreds of years ago, some people did conceive of such things as heavier-than-air flight and radio.
There was this guy named da Vinci, I think, who thought up parachutes, helicopters, tanks, cars, bicycles, the principle of the telescope, the Mona Lisa....
What I am saying is again is, go nuts! We promise to keep the straight jackets at bay.