On 23 April 1910, Theodore Roosevelt gave a speech at the Sorbonne, in Paris, France. The most memorable moment was when he said this:
"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat."
And that is why you shouldn't snigger at Google Glass – or any innovation or any innovators. For more on this idea, read an article on the New York Times that does scoff at the rise and very public fall of the fancy tech specs, and an opinion piece I wrote for The Idler extolling the heroism of the innovators.