Two interesting things I learned recently.
1. Light doesn't experience time. The photon hits your retina at the same time as being ejected from the star 5 billion light years away, from the photons point of view.
2. Planck length divided by Planck time = Speed of Light
yeah, that's pretty wild eh? and it can go backwards in time too, that's implied by the imaginary factor that the physicists ignore because of conditioning at university.