According to Einstein’s theory of general relativity, mass/gravity bends the fabric of space-time. The greater the mass/gravitational pull of an object, the more it curves space-time. This causes time to pass slower in areas of space that have stronger gravitational fields. For example, if you synchronize two atomic clocks on the surface of earth, then put one of the clocks in orbit and left the other on the surface of earth, then the clock in orbit would run slightly faster. So the relationship is as you approach a center of mass, time runs slower. In other words, as gravity increases the passage of time decreases (relative to outside observer). The objects in the universe with the greatest gravity that we know of are black holes. Because of their extreme gravity, or warping of space time, objects that fall into a black hole will appear frozen in time from the perspective of an outside observer. An object that has crossed the event horizon will continue to fall towards the singularity, but will appear frozen in time to an outside observer. So if you fell into a black hole, and somehow stayed alive, you would continue to fall into towards the singularity. But from the perspective of an outside observer you would appear to freeze in time before you crossed the event horizon. The light that produced your frozen image would then radiate away.
According to Steven Hawking, Black Holes will eventually radiate away. In other words black holes will emit light. But isn’t the gravitational pull of a black hole so strong that light cannot escape? In order to make sense of this apparent contradiction we have to talk about the temperature of space and very basic thermodynamics.
Space is very cold relative to the temperatures we experience here on earth. But the temperature of space is nowhere near absolute zero. In fact the temperature of “empty” space is about 2.73 Kelvin. That may be cold, but not in comparison to the temperature of black holes. The temperature of a solar mass black hole could have a temperature of about 0.00000006 Kelvin, and black holes get even colder as they increase in mass. Since energy flows from hot to cold, black holes absorb light rather than emit it. But as universe expands, due to a mysterious force known as dark energy, it cools. After an inconceivably long amount of time, the temperature of the surrounding universe will become colder than that of the black hole. Because energy moves from hot to cold the black hole will release its contents into its surroundings. This will occur slowly at first, and will accelerate faster as time moves on. All the matter/ energy that is densely packed into the singularity of a black hole will expand and radiate into the surrounding space.
My theory
Imagine if the properties of black holes are reversed once the temperature of space surrounding the black hole drops below it. Instead of the matter and energy being crushed and into a single point, it would expand outwards in every direction. Instead of matter appearing to slow in time as it accelerates towards the singularity, that energy would speed up in time as it accelerates away from the singularity (relative to an outside observer). If the energy that is released from the black hole somehow contained an observer within it, then that person may experience time similar to we do, but the cold space that surrounds that expanding field of energy would appear frozen in time. Even if a person experienced an eternity as they exited a singularity, that timeline could occur in a brief moment to an outside observer. A person living within a radiating black hole would be in a pit of slowed time that gradually speeds up until it is uniform with the surrounding universe.
Now imagine a universe that existed before ours. A star in this universe collapsed and formed a black hole. Then the universe expanded until was cold and dark. Once it’s temperature dropped below that of the black hole, the contents of the singularity were released into the surrounding cold dead space at an accelerating rate. Perhaps this sequence of events is what caused our Big Bang and accelerating expansion. We may be a child that is expanding into our cold and dead parent universe. Perhaps what we call dark energy is the just the effect of the cold vacuum that surrounds us.
Now imagine another universe with an accelerating rate of expansion that is identical to ours, the only difference is that this universe contains a billion times more matter than ours. The increased mass and gravity would result in the entire universe collapsing in on itself. In order for it not to collapse back in on itself you would have to increase the accelerating rate of expansion.
Now let us compare black holes of different masses. Black hole A has less mass than black hole B. Since B is more massive it is also colder than A. Because of B’s lower temperature, the temperature of the surrounding universe that will allow B to radiate away will have to be much lower than that of A. In other words, the more massive a black hole is, the colder the surrounding space is when the singularity releases its energy into it. The greater difference in heat between contents of the singularity and its surroundings causes a increased accelerating rate of expansion. This increased rate of expansion is countered by the increased gravity resulting from the greater mass. So as you increase the mass of a black hole, the energy that causes the singularity to expand increases. In other words gravity and “dark energy” are always balanced. If you increase mass you increase dark energy. So black holes may all expand at the same net rate relative to an observer within them.
So if black holes create new universes within ours, then does the matter they contain make any difference in the timelines they create when they expand? Perhaps all forces and outcomes of the universe stem from the balance of gravity pulling inwards and the surrounding vacuum that pulls it outwards (aka dark energy). And if the balance of these forces remains constant then perhaps the timelines created within these radiating black holes are identical to that of this universe.
No matter what enters a black hole, whether it’s a star or an asteroid, it will become spagettified until it is uniform. Anything that approaches a singularity will be stretched and pulled into hot string of plasma 1 atom wide. But why stop there? An atom closer to the singularity will experience more gravity than one that is further away, so they will separate. Even the side of the proton closer to the singularity will experience more gravity than the side further away. This could cause even the smallest known particles to be split apart due to the extreme gravity. Perhaps the energy stored at the singularity is composed of the smallest and hottest possible substance uniformly. The amount of this substance that exists within the singularity does not matter. When the black hole expands, all this hot energy will be released from a single point that expands at a fixed rate, recreating the exact conditions of our Big Bang. In other words the size of the universe at its origin will remain constant, being a singularity with (almost) no volume. The force gravity will remain constant, and the acceleration of expansion will remain constant.
If this is true, then the smallest, hottest, and most indivisible particle that is released from a singularity encodes the information for every possible outcome in our universe. Every thought, memory, person, planet, star, black hole, and galaxy are all encoded in the smallest division of matter. That smallest division of matter forms our universe when it is pulled apart in every direction by the surrounding vacuum of space.