Endy0816

The problem is c represents a physical limit, rather than one we might solve with technology. It wouldn't truly be a black hole if information can come back out of it. Even flying in might not work. May run afoul of the No-Cloning Theorem from QM.

Normally only talking about the X, Y, Z coordinates being unchanging with respect to something to define at rest. While there is always be something increasing or decreasing in distance from you(relative motion) we also don't define being at rest in universal terms either. We are all always 'moving' at 1second per second though in terms of time. This is still change in respect to your previous coordinates. ie. X, Y, Z, T vs X, Y, Z, T+1

They are crazy dense, but not big relative to their accretion disc. If you could get close to one, would look more interesting. Conservation of angular momentum is the underlying mechanism so will look the same a a planetary nebula or even our own solar system, spiraling around a central point as they do. Yes, dark matter is real. Doesn't interact with light though. https://ysjournal.com/cosmic-web-seen-for-the-very-first-time/ x-posted

Same(probably), though note a relative's genetic success can be as good as if not better than your own to an extent. We're all pretty similar too on the whole, so not really bothered by it personally, especially with this sheer mass of humanity that we have today. Genghis Khan would even have a run for his money, with a population of over 7 billion.

We can observe the accretion discs that form around them, the impact their gravity has on other masses in their vicinity, gravitational waves. That sort of thing. Similar story to dark matter. All we have been able to 'see' is the shadow cast by hydrogen attracted to it, but we knew it was there already by the impact it has on galaxy rotation.

Might be worth looking at handwriting analysis.

Da, it normally only flips every 8 years. Been an... interesting... four years though so I'm hoping we get lucky.

I wonder if we couldn't have figured it out sooner actually. Maybe we're the thought experiment of a world where one Joel Schmidt came up with it instead.

Disney has some cool ones for use as stunt robots. Besides battery life, main roadblock is that they tend to focus on one particular area rather than the more rounded sort of requirements a terminator might have. I think if we really wanted to we could do it within a few years. Well most times around Skynet doesn't invent it until later in the war. This last time was an outlier though and it came up with temporal displacement early on, so you never know. Edit: Just wanted to add that this is a really good program and they have parts of it on PBS and youtube, if anyone is interested.

Transdermal implants can be done. Lab grown horns probably not. Practical issue is that the cells won't develop into particular shapes on their on. Foreign cells would also greatly raise the risk of rejection. You could conceivably shape an existing bone into a horn shape though.

Some studies on low gravity pregnancies, suggest the children might develop abnormally and find dealing with higher levels of gravity borderline impossible, while others suggest the embryo might fail to develop at all. So I'd say your fist idea is pretty plausible, may need to be larger though to avoid nausea. As to the second, you are talking about a Utopia. Be nice, but we have a long ways yet to go as a society. On the whole things are gradually improving though.

I've been doing Mylar over cardboard, for the inside of mine lately. Might be easier to get your boss to agree to that.

Found an interesting article on this: https://www.theguardian.com/science/2012/aug/19/most-improbable-scientific-research-abrahams Granted be curious to find out how much an impact higher levels of humidity would have.

Agreed that most mega-projects while not feasible with purely human labor, are more than feasible with enough machines working for/with us. Think once we get automated transport and farming finished up, we'll be in good shape to consider more. These projects won't be free from opportunity cost, but that cost can be made smaller. We do have private spaceflight taking off. Bit biased, but think tourism is going to be an important first step along with these ever larger satellite constellations. https://techcrunch.com/2020/08/10/spacex-reveals-plans-for-a-texas-spaceport-resort-in-new-job-ad/ If we can get to the point where space station relocation is the norm for in-system colonization, we'll be better equipped to start looking at expanding outside the solar system.

Yeah. It's interesting that the Universe could have a finite volume but still be impossible to cross.

Have to factor in expansion as well. For distant destinations, the distance is growing at a rate faster than the ratio c.

https://www.instagram.com/pet_foolery/?hl=en This gave me a chuckle ...and it is true too... No scuba diving up North for me lol.

Realistically you will always have some kind of hard/wetware to worry about. You might have access to a hyper realistic simulation but you will still have some kind of body. Could see variety of artificial methods used to sustain the population, if necessary, though doubt that it will be.

You'll always have some losses though. You mentioned swapping out the bolts to reduce parasitic losses for instance. Note the idealized nature of the Carnot equation. Any real engine will have all kinds of issues reducing theoretical efficiency.

Does it stop once the heat source reaches the cooler ambient temperature? Somewhat separate, but is there any chance your vacuum flask has developed micro cracks?

Basing this on there being the same amount of mass on all sides. Not 100% sure here, however, so feel free to correct me if I'm wrong lol

I think if the Earth were to stop spinning and had all of its mass evenly distributed in a sphere, it would be close to zero at the exact center.

*Tucks Universe back into pocket* Balloon example is all good until someone asks you about those dots expanding or us colliding with Andromeda, lol.

It would just end up floating on top of the water.

@Airbrush Not sure if this is the best example, but might imagine the Universe as a set of reverse Matryoshka dolls, with larger dolls nested within smaller dolls. The volume each doll contains increases rapidly, but internally.