NOW THAT WE have had some time to think about LIGO’s detection of gravitational waves, there are a few interesting comments I can make about it.
Gravitational waves don’t have to be useful
There is a common question that comes up in media whenever there is a new scientific discovery—“What can you do with it (gravitational waves)?” Can you build an anti-gravity machine? Could you use this to build a warp drive? These are all great ideas, but they miss the point. We don’t study gravitational waves so that we can make stuff. We study gravitational waves because we want to understand gravitational waves.
I think that Richard Feynman said it best: