Einstein has become such an icon that it sounds sacrilegious
to suggest he was wrong. Even his notorious "biggest blunder" merely reinforces his aura of infallibility: the supposed mistake turns out to explain astronomical observations quite nicely [see "A Cosmic Conundrum," by Lawrence M. Krauss and Michael S. Turner]. But if most laypeople are scandalized by claims that Einstein may have been wrong, most theoretical physicists would be much more startled if he had been right.
This article was originally published with the title Was Einstein Right?.