Anti black holes?

Question

If black holes(or the energies at work around them) can be utilized for time travel in one diretion, could a anti black hole be used for time travel in the opposite direction? What do you place the odds at?

Answer 1

I place the odds between "I have no freakin' idea" and "High School geometry hurts my head".

Answer 2

There were unaccertained claims of white holes and worm holes. But according to Einstein, time slows down as you go faster and it eventually stops as you attain the speed of light. But nothing in the universe can go faster than speed of light; a black hole, or its counterparts, is no exception to this rule. Therefore no, you cannot reverse time by physically travelling in an astronomical object.

Now there are talks about that particles such as graviton (precursor for string theory) can travel faster than light, or other ways of warping the dimensions around us, but these are strictly theories (and quite widely debated as well).

Also you might be aware of the tension between Newton and Einstein, as the former focused on large celestial objects while the latter developed theories uniquely for small particles. One example of the tension would be gravity, Newton believed that gravity is instantaneous, or constantly acting upon an object. So if the sun suddenly disappears, then earth would immdiately go off on a tangent to the orbit. But according to Einstein, gravity cannot go faster than light (in fact nothing can), so in the scenario above, earth would stay in orbit for a little while (longer that it takes light to get to earth) and then shoot off into space. This is where gravitons, or particles of gravity (like photon is to light), come in.

So it really depends on what you believe in, Einstein, then no faster than light travel. Newton, yes, and consequently, going the opposite direction of time. Personally, I vouch for Einstein, not that I'm not a sci-fi fan, I'm just think that Einstein explans a lot of phenomena that Newtonian theory failed to do so.

Answer 3

A white hole--- 0