I’m a hazard a guess and say they are in space.

The military was in NO way involved in development or funding. Years later, they saw the capability and showed up to get their hands on one. So what? Lots more where sold in the free market to regular citizens.

Does diamond melt? I know in the presence of high temperature oxygen, diamond will burn but idk what it does in a vacuum.

Its certaintly unsuatainable, which is the argument nobody's talking about here.

[removed]

Who purchased the first Wright flyer?

https://airandspace.si.edu/collection-objects/1909-wright-military-flyer/nasm_A19120001000

You are essentially correct. Both of these are resultant of increasing entropy. Though neither is directly responsible for the other, they are both reasonable effects of the process of informational encoding. When entropy hits an effective maximum time will become meaningless and space will lose relational cohesion.

Ok, that's correct, but still from either observer's perspective the other person is not traveling faster than the speed of light, due to relativity it is very different. It is true that they won't see each other though even if they enter at the same time, so long as the entry point is different, for reasons I don't really understand mathematically since I haven't actually taken GR but have to do with the geometry of the black hole and that the singularity doesn't actually appear small, it appears to grow larger and larger as you approach it paradoxically. So it's more like free falling onto a huge black planet would look like.

https://jila.colorado.edu/~ajsh/insidebh/schw.html

> Geometrical intuition, bolstered by pictures like this one would suggest that the center of the Schwarzschild black hole is a point. That intuition is misleading. If you and a friend fall into a black hole at the same time but at different locations (in latitude and longitude), you do not approach each other as you approach the singularity. Rather, the diverging tidal force channels the parts of your body along the inward radial direction. Far from meeting your friend at the singularity, you cannot even put out your arms to touch her.

> “The” singularity is not a point. Rather, it is a 3-dimensional spatial boundary where general relativity commits suicide. New physics, presumably quantum gravity in some form, must replace general relativity at singularities. What that new physics is remains a profound unanswered question.

[removed]

[removed]

What if time isn’t moving at all and it’s just the way our bodies and brains evolved to perceive space time that makes it seem like it moves “forward” from our perspective?

If you travel at the speed of light time slows down .. something like that

I interpreted it as, if you traveled towards the expanse or towards the center, you would expect to see opposite time warps or something measurable. As you mentioned, speed and mass have been the only measurable anomalies we know of, so it doesn't appear tied to the expanse

That's either incredibly pessimistic or uninformed unless you are betting on SpaceX completely disappearing. Even then there are other private launch providers will eventually develop the required hardware.

Well if your assertion was true then spacetime would have near total symmetry & only our perception would make the difference.

Because, since in a collapsing universe time would then run in reverse & that looks like an expanding universe to any perception that relies on entropic increase.

But since we cannot presently model entropically negative perceptions then the question becomes a truism.

Hello u/Awesomazius, your submission "What if time is only going forward because space is expanding?" has been removed from r/space because:

• Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

It’s been attainable for 50 years. It’s a question of priorities. Specifically, human space exploration or ‘politics by other means’

Add to this the fact that everyone will get sick and die eventually regardless of the quality of care they receive.

Space and time are supposedly essentially the same thing, so it is. Space expanding is what caused the Big Bang; no space can be said to have existed prior to the Big Bang. Perhaps the inherent potential for space is what triggered the expansion in the first place.

However, what we perceive as time is just a reconfiguration of matter. The events if the past have no material representation aside from that information recorded in the predent; those past events are not real things, in the sense of being things. Our subjective present-- where we collapse probability via observation-- exists about 80 milliseconds retroactive from the objective present, the latter being concurrent with the singularity beyond Planck frequency at the high-frequency termination point of the electromagnetic spectrum, and that from which the Big Bang originates. The original of the universe is a fraction of a second in our future, not billions of years in the past. Only a latent attotechnological observer operating very near the singularity can account for the requisite observer-- as per wave-particle duality-- in the first moments "after" the Big Bang atlnd at the fundamental scale of our apparent material environment.

>Human technology has progressed from millitech, to microtech, to (recently) nanotech, and this essay attempts to start the thinking on femtotech (and attotech). > >This downscaling trend provides a potential answer to the famous “Fermi paradox” (if intelligent life is so commonplace in the universe, “where are they?”). If intelligent creatures or machines can continue to “scale down” in their technologies, the answer to Fermi’s question would become “They are all around us, whole civilizations living inside elementary particles, too small for us to detect.”

-- Ray Kurzweil

[removed]

You’re conflating the health insurance industry with the health industry.

The fact they are linked is the problem of course, but there’s nuance. Private enterprises run hospitals better than the government would be the argument.

I think OP means the expansion of the universe / space-time itself, not the direction of our travel through it.

Or could you point the Webb to see one of these probes out there? Would be unlikely but interesting.

Isn't time warped near massive objects though?

How can you say it's the same no matter which way you travel but also say it's changed by speed?

You can’t swim in aerated water and I’m sure there was aeration in progress nearby. The solids and FOG (fats, oils, and grease) present their own hazards too. I’ve been dunked a time or three myself. To say it’s unpleasant is an understatement. I fell into a wet well once, and as if bouncing off an iron pipe and smacking the surface of the grease cap weren’t bad enough, getting back up through the grease cap with two broken ribs, a concussion and the resulting disorientation were even worse. That day I decided that fall harnesses were my best friend. Sometimes a grease cap can be thick enough to walk on.

The plant that I run now produces potable quality water. It’s considered non potable because of the source and because the quality simply isn’t as reliable as something like the Sparta facility or whatever system they’d be using in SF. I’m running a low tech system that only processes a few hundred gallons per day. With a bad weather upset I could end up discharging some pretty gross stuff, then I have to get the health department involved, environmental impact studies, get in some trouble, get fines levied against my company and it could have a big negative impact on nearby communities if it goes uncorrected. For obvious reasons, I try to avoid that. My old plant processed 3 million GPD, and I think the Sparta plant is designed for a 10 million GPD max capacity and I don’t believe it’s ever had to run at max capacity. It was built with the prospect of expansion in population. Large plants are MUCH more labor and energy intensive, but also more reliable. In very simple terms, the much larger volume acts as a bit of a shock absorber when something happens. Like if some jerk decides to dump a bucket of bleach or car wash soap in one of my manholes, I’ll have to take my plant offline, have it pumped out, go get some activated sludge from a friend at another plant and start from scratch. If that happened at the Sparta, they wouldn’t even notice it.

But the whole point here is, water is recyclable, especially if we make sure our waste is “clean”, as in chemical free, trash free. Only thing that should ever go down a sewer line besides water, is the four P’s: poop, pee, puke and paper. In a closed system such as maybe a space station, the biggest obstacle I’d see right away is the equipment. You’d need a way to dewater and disinfect the waste. I’d personally advocate a dewatering press and UV system, but doing that in zero or micro G would require some extensive modifications. The most economical way with the tech we have now is to resupply fresh water and vent the waste. Someone else mentioned there’s plenty of ice floating around out there. I wonder how space ice would taste?