Discussion on Time relativity near black holes

Submitted by AGARAN24 t3_122k7bl in space

So let's say for example , I find a spacecraft, which can hold itself together a bit closer to the black hole without being disintegrated into it. So as time relativity, my time should decelerate or accelerate in earth time. They say 1 second near a black hole is 100000 years for people on earth. So say for example I somehow can live for 10000 years near the black hole,, so then is it safe to say that 1,000,000,000 years have passed on earth? Lets change the calculation accordingly, to last 100 trillion years on earth, scientists say the big freeze or the death of the universe will occur in 100 trillion years, so If I could somehow find a black hole that can decelerate my time even higher, technically, I could be there 24 hrs and the universe could end?

So then wth is time, isn't the black hole just 24 hrs younger then? While the earth is much more. How do we even define time now? It's all relative to earth time then? Just like countries have individual time, we have time for each black holes then. I guess it's just fascinating to think of it. Do give me your insights and opinions.

To think of it, could it be that some organisms perceive time much faster which can survive even on the black hole, lived for one minute and the universe ended? So we could technically find a planet with the least density to slow down time to live longer.

5

Comments

You must log in or register to comment.

Rhoihessewoi t1_jdqv6zy wrote

1 second last 1 second for you. Always. But only in your time frame. It doesn't matter if you are in open space, on a planet, near or in a black hole.

There is no "universal time" that you can take for reference. You can only compare different time frames.

3

AGARAN24 OP t1_jdwnndg wrote

Ye i get that, it's just that 1 second near black hole, years on earth. so if u see through a telescope, it would look like people move on fast forward.fascinating stuff.

1

Rhoihessewoi t1_jdwzhth wrote

If you want to see the end of the world and don't wanna wait, just fly over the event horizon.

But don't blink, or you will miss it. The "rest of time" will be compressed into a short, intense gamma ray burst.

1

ExtonGuy t1_jdr2fbx wrote

When the universe ends, all the black holes will have evaporated. Your atoms will have evaporated… first from each other, then the very electrons, protons, and neutrons in each atom will separate from each other. The neutrons will decay into protons and electrons, and probably even the protons will decay into neutrinos.

At the end times, there will be no black holes, no atoms. Just photons, electrons, and neutrinos, all separated from each other by trillions of trillions of light years.

2

z3r0d3v4l t1_jdwnlxl wrote

I like the theory all the black holes will pull the universe back together while forming an ultra black hole and start everything over again lol

1

AGARAN24 OP t1_jdwnsb0 wrote

But in black hole time, that could be just 100 years or something. Meanwhile for us that blackhole to die in earth time would be trillion of years.

1

ryschwith t1_jdrg5hs wrote

> So then wth is time … ? How do we even define time then?

Welcome to the giant mindfuck that is modern physics. We don’t know! We have hints that time isn’t the logical and linear progression of causes and effects that we observe it to be, and we’re very early in understanding what that actually means.

We don’t even know what “now” is.

As near as I can parse your hypothetical scenario, you would experience 24 hours of time and watch all of the Universe around you (including the black hole) rapidly decay into heat death. Although it gets slightly more complicated because as the black hole evaporates that’ll effect the magnitude of time dilation you experience.

2

AGARAN24 OP t1_jdwo0so wrote

My thoughts go like this when I think abt physics. Mindfuck>fascination>existential crisis>fascination>nihilism>forget and continue life. xD

1

BProbe t1_je50alh wrote

I live in a constant state of nihilism, you're so indifferent to the universe's scope that one cannot simply assume there's a purpose or a "mission". We are just a probability that materialized... The atom soup was just right enough for this to develop. We'll exist, do our thing, stop existing, and the universe won't even skip a beat (I don't think we won't even have been/will be around for enough time for a universe beat to even occur).

If our observations and science are even infinitesimally correct, I believe it to be a win, because IMHO there's A LOT that we are simply unable to observe/study/comprehend. What even is existence and reality itself? Existential SMBH.

2

AGARAN24 OP t1_je8u92v wrote

The sad part is, we will never uncover the truths of the universe, we will perish before then. Even if we do, I for sure won't be alive at that time.

2

BProbe t1_je8ynda wrote

O believe we do when we die, like a post-game-ending screen. “What do you want to know?”

1

AGARAN24 OP t1_jeae1r0 wrote

Haha, more like , "u died a loser, suckaarr. "

1

SlowLemurFastLemur t1_jdtwgvx wrote

These are really really good questions.

>So say for example I somehow can live for 10000 years near the black hole,, so then is it safe to say that 1,000,000,000 years have passed on earth?

Yes!

>Lets change the calculation accordingly, to last 100 trillion years on earth, scientists say the big freeze or the death of the universe will occur in 100 trillion years, so If I could somehow find a black hole that can decelerate my time even higher, technically, I could be there 24 hrs and the universe could end?

That's a harder question. I want to say yes. When they say the universe will die they mean that all the energy and matter will break up and be one warm ball of stuff, not structured like we have now. No planets, no stars, just like dirt and heat.

>So then wth is time, isn't the black hole just 24 hrs younger then? While the earth is much more. How do we even define time now? It's all relative to earth time then? Just like countries have individual time, we have time for each black holes then. I guess it's just fascinating to think of it. Do give me your insights and opinions.

That's an excellent question. Time is relative! Time means different things depending on where you are in the universe. When scientists say things like "the earth will end in 100T years" they're giving that number to you in earth years. Time is not all relative to earth but the time you and I care most about, the age of our family and friends, the age of the world, etc. Are relative to earth.

>To think of it, could it be that some organisms perceive time much faster which can survive even on the black hole, lived for one minute and the universe ended? So we could technically find a planet with the least density to slow down time to live longer.

Sure. There could be creatures that live on a massively heavy planet. Their time would advance more slowly than our time and our time would advance more quickly to their time. Time is not an absolute thing it is entirely dependent on context.

2

AGARAN24 OP t1_jdwodh4 wrote

It's just I sorta know it, but wanted confirmation. It's just fascinating yet so surreal, these concepts we haven't even experienced, but we know it happens. It's magic for most people today if they experience it. Like if u r on a black hole and see earth it would be like on fast forward. So then the picture we see of black hole could be accelerated, such that if we are on black hole, it could be something different also? That could also be a possibility right? It's just we see it as black and a ring around it because it spins so fast on its time?

1