The physics of the universe may not change, but the understanding of them would have been changed by having introduced a ship with a hundred years plus of knowledge into the timeline. Look at what is happening to us on this mundane world. Where were we a hundred years ago before in our knowledge of physics? We aren't living in a time, like the ancient Greek and Roman world, where the understanding of the universe is progressing at a snail's pace. In our modern world, there seems to be a new discovery every week I would think in a multi-species melting pot that is the Star Trek universe that new discoveries would be happening on a faster scale.