I hate it when presumed scientists make asinine assertions like this one. Unless the "fact" can be experimentally tested and repeated it is not a fact; hell, it's not even science!
So how can the words "abslutely true" be so carelessly used?
"Unless the "fact" can be experimentally tested and repeated it is not a fact; hell, it's not even science!"
The reality of Einstein's theories of relativity have been proven experimentally, repeatedly, with results in exact accordance to what the theories predict. Atomic clocks in spacecraft and the effect of gravitational lensing are both in agreement with his theories. I'm sure there is other evidence, also.