alt Hacker NewsSure, nothing in the laws of physics prevents a celestial body from distancing itself from the Sun or from the Moon. But it would like suspicious! Wouldn't you suspect that you were watching a reversed video?
Sure, nothing in the laws of physics prevents a celestial body from distancing itself from the Sun or from the Moon. But it would like suspicious! Wouldn't you suspect that you were watching a reversed video?
You don't understand my point. If we watch purely gravity interactions, the video can be reversed and you wouldn't be able to detect it.
If a meteor crashes into the moon, there's other effects than gravity that makes the video not reversible. Ie it's not only gravity.
That's the point.
In other words, if a comet approached the moon at high speed, missed and slingshotted in another direction, it would be traveling away from the moon, but the video would be time reversible and you couldn't be able to detect it. Gravity only interaction.