Oh, sorry. It was a Futurama reference to how in Star Trek they could go back in time by sling-shot-ing themselves around a planet or the sun.
According to the pure math, there's no particular reason for time to run forward only, so it's only almost certain that your MacBook is covered by the warranty, even though they introduced it less than 1 year ago.
That was it. It's pretty late, I guess. 😱