That was it's inbound orbit, or its last orbit, which changes after this flyby.

A lot of headlines saying "won't be seen for another 50k..." mislead people at first(myself included).

Rick and morty would like a word

Ok I’m back lol. And I do agree: the night sky should be bright if the universe was static, as was assumed in 1900. But we looked for explanations and stumbled upon the expanding universe, which then led to the creation of the Big Bang hypothesis. I don’t know if we can say that philosophy drove the gear for the explanation, but it certainly set about something that then had to be explained, so I see where you’re coming from

Perhaps the energy of every universe keeps the others going, like pushing off of each other or like a neverending waterwheel.

Even if true, there are so many you could never find one that even remotely resembles yours

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Personally, I appreciate someone saying out loud, "I have a kneejerk reaction but let me examine it." Reinforces good thinking habits for me. So maybe let people write how they want?

I'm reading "The Universe in your hand" by Christophe Galfard (great book, easy to read and covers everything science knows about the big and the small and then some), and there are 4 types of multiple universes theories all following extrapolations from real physics or mathematics. I'd recommend reading that to better decide for yourself how scientific you believe it is.

The eccentricity of C/2022 E3's orbit is listed here as 1.0003290, which, since it's just barely bigger than 1, and if accurate, means it's on a hyperbolic escape trajectory.

Luckily we’re on the internet so you can just come back to it without announcing your intentions to come back to it.

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In 50,000 years we would be the aliens. I see what you mean it would just be a time capsule. It would need multiple missions attached to it. To even make it worth it.

I recommend the book “How Apollo flew to the moon”

PBS Space Time explains some ideas, pretty well founded in the physics of what we can detect and derive Before the Big Bang

If I don't get answers after I die, I'm gonna speak to the manager and demand a refund.

Yeah it's really a cost benefit thing right now. Even then like you said there need to be multiple missions attached to it. It would have to be something we planned for far ahead.

We all seen how long the James Webb took. You would need at least that much time as a margin of error. That maybe a pretty generous estimate, but if this is a once in humanity shot. You would have to plan for things to go wrong.

C/2022 E3 (ZTF) is a long period comet, not an interstellar object. It would just come back round in 50,000 years so I'm not entirely sure the purpose of this.

There tend to be measurable effects from those other ideas though. There is at least a measurable symptom of gravity and what else, even if there is no graviton or anything. The multiverse on the other hand seems to be something that is posited as a potential model but only to fill a void that could potentially be filled some other way.

With regard to quantum states, it’s difficult to measure how the day to day emerges from quantum weirdness and I think some researchers think that if a form of quantum weirdness exists it must also occur in some sense at larger scales, which is how people become spiritualist hucksters. And that concerns me

Also owls are interesting. True

That would be a cool mission. A real message in a bottle / time capsule for the universe. Sadly, I can’t imagine it ever being funded unless maybe we could tag it onto another mission?

That depends on which kind of multiverse you're talking about. If we go with the quantum, then the multiverse comes about as a logical result of our observations of the behavior of subatomic particles and their ability to be in two or more different, contradictory states at the same time (such as being in two different places at the same time). Since the particles can occupy contradictory states at the same time, so too must the things they make up, like us and the universe. Since we don't see this constant variance in our observations of reality, one solution is the quantum multiverse hypothesis, allowing the variances by postulating divergent universes.

As for the infinite energy requirement, one of the possible solutions is that the calculated energy of our universe is zero. Everything balances out, so our universe's total energy is zero. And yes, you can get more zero states from a zero state.

True, as of right now the multiverse hypothesis is unfalsefiable, but that also used to apply to the theories of gravity, germs, electromagnetism, organic chemistry, cells, the speed of light, photons, evolution, all of them. As we develop that may change.

I think the energy of each universe would keep itself going. Also, the first thing that popped into my mind was the Double-Slit Experiment. Go into a deep dive into that whole thing and you’ll be lost for hours.

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Multiverse is a plot device, and a lazy one at that, not real life.

That would break physics. They couldnt be in one another because e=mc2.

Unless you break physics you couldnt shrink a universe down unless it had no energy and no matter (or differeny physics). Because it was nothingness it would just be part of our universe