Baughn
Healing-type writer
- Location
- Dublin
While I'm reminding myself of how this works... here's another obvious violation.
The universe expands, hence photons red-shift. Everyone knows that, but what you might not immediately realize is that this also violates conservation of energy -- photons 'leak' energy over time, depending on their location, as their frequency falls. Again, it's a non-issue -- Noether's theorem states that conservation of energy is caused by the laws of physics staying the same over time (or vice versa), and the expansion of the universe means they're not staying the same, in this sense.
The corresponding duality for space is conservation of momentum. Space and time are the same thing, hence these are really the same conservation law. They look little alike; this is largely because everyone has a four-momentum pointing straight forward in time, with no components in space. For a tachyon I suppose the space component would look like the time component does to us.
Last edited: