Einstein had looked at the numbers and dimensions that went into his equations for gravitational waves and said, essentially, 'This is so tiny that it will never have any influence on anything, and nobody can measure it.' And when you think about the times and the technology in 1916, he was probably right.

In terms of what I wanted to do before I got into politics, I was a businessman. I ran a company that makes and sells infrared night vision military technology and solar technology, so I wanted to grow that company and pursue groundbreaking technology in each of those areas.

All of this technology wasn't available to Einstein. I bet he would've invented LIGO.

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