Or crash horribly into it causing a small super nova...

Lightspeed is impossible to achieve, but at a significant fraction of lightspeed the object would look longer to you.

So, conversely, would the person falling in watch time speed up outside?

Gosh, imagine falling in and watching the universe die with you.

Nah, that is just climate change these days.

At light speed, time would be instant. You would just arrive..

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I would suspect at light speed, it would be 2x playback speed.

I wish they would update these solar system images. We don't have a flat solar system plane lol.

I don't know how easy neutron stars are to find. I also don't know how easy binary neutron star systems are to find.

I do know we've been getting gravitational waves from all across the universe every few days from neutron star collisions and black hole mergers for the last few years. But that is a sample size of billions of cubic light-years of space. We're talking trillions of galaxies. A typical galaxy does not have a neutron star or black hole formation in any predictable way. I refer to the milkdromeda galactic merge for the most likely next neutron star collision anytime soon.

Now... engineering a black hole? That's bonkers. I would pay to see that. Someone get kurtzgesagt on that. Would become one of the most extreme science experiments possible.

What if you fired off a wicked slap shot in there?

I get an overwhelming sense of insignificance while imagining the size of space, as well as trying to find an answer to why we exist at all.

To my understanding: yes, but there are two major problems:

• You'll need a huge number of bacteria to make a difference. Even doing that on Earth will be tricky. What helps of course us that they multiply themselves, but it will take a while nevertheless
• The atmosphere of Mars is very thin due to the absence of a magnetic field. Even if you are able to produce much oxygen, most of it will get ionised by radiation and will be lost eventually

However, the bacteria themselves should be able to survive out there on Mars, if not thrive. They are crazily resilient

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>but the closest neutron star collisions are outside of our galaxy.

Those must just be the closest ones we have so far detected right? There is no reason our galaxy is different to the others. We should be able to locate something a little closer I think. Heck, maybe in the future we could actually cause the transformation to happen by artificially increasing the mass of the neutron star via a particle beam or some other tech...

I think by definition of event horizon the answer would be no.

Is there not also an infinite amount of time passing in the universe above the event horizon, instantly evaporating the entire black hole according to the internal observer?

Or do black holes break causality?

>this decomposition is not unique, and different choices of coordinates can give rise to different perspectives on the same physical situation

Is this formally "loss of causality information" and somewhat equivalent to "infinitely blueshifted" or am I way off?

>the physics of a system should not depend on the choice of coordinates used to describe it.

Are there better choices by which to describe what I'm asking about?

We do.

Gravitational wave observatories are currently the best way to do it.

Okay, so maybe we wanna use telescopes. Remember the images of Sagittarius A* published in recent years? Took months(years?) to resolve, because it was so distance and that thing is massive.

Black holes are dense and tiny. So are neutron stars. We have trouble resolving the size of stars that are nearby and larger than our own, let alone stars that are mere kilometers across. The likelihood of an individual neutron star colliding with another neutron star to form a black hole within any resolveable distance is... astronomical.

It definitely would be an absolute treat to witness, and would be huge for the entire scientific community, but the closest neutron star collisions are outside of our galaxy.

Best we can do is point a telescope at a location and hope we get things like spectroscopy and light intensities to find out useful info. Build ever larger observatories that span solar systems. Wait a couple billion years and hope there are neutron star mergers in the milkdromeda galactic merge.

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You sure its not because China is doing it?

Shut up he's just getting some cigarettes he'll be right back

With general relativity, the gravitational field is encoded in the curvature of spacetime. This means that the path that light follows is determined by the curvature of spacetime, which is itself determined by the distribution of mass and energy in the universe.
So with a black hole, the spacetime around the black hole is highly curved due to the presence of the black hole's mass. This means that light that is emitted by one observer will follow a path that is determined by the curvature of spacetime, which will generally not be a straight line.
It is possible to consider a "1+3" decomposition of spacetime, where space is divided into a set of spatial coordinates and time is treated as a separate coordinate. However, this decomposition is not unique, and different choices of coordinates can give rise to different perspectives on the same physical situation.
With a black hole, it is possible to consider a set of coordinates that are "equidistant" from the center of the black hole, as you described. However, these coordinates would not necessarily be a good choice for describing the physics of the system, as they would not be well-behaved at the event horizon of the black hole.
In general, the physics of a system should not depend on the choice of coordinates used to describe it. Therefore, it is generally not valid to draw conclusions about the behavior of a physical system based on a particular choice of coordinates.

So god can kill god. Maybe that’s why he seems like he’s away on business.

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