For quantum gravity specialist and author Lee Smolin, Albert Einstein’s greatest strength didn’t lie in numbers.
Evidence of “ripples in spacetime” detected by the LIGO Scientific Collaboration marks the dawn of gravitational wave astronomy, say Perimeter researchers.
Update (May 19, 2014): There have been recent developments relevant to the article below. For more information, see:
The talk given at Princeton on May 15 by Raphael Flauger (New York University and the Institute for Advanced Study)
The Workshop on Primordial Gravitational Waves and Cosmology at the California Institute of Technology (Caltech)
A less technical article in The Washington Post