From: James Dow Allen on
Imagine a star evolving in reverse time. That is, a film of it played
*backwards*
would appear normal. (Perhaps it began with some Big Bang in the
*future*.)

My question is: How would it appear to us? We wouldn't be able to see
its emitted light, since its photons would be converging on the star,
according to our time sense, and even if we did detect one of its
photons, our detection would mean it wouldn't get to the star at all
(and therefore was never emitted!)

Would its gravitation appear as normal? Would it be a sort of "dark
matter"?

James