There is a theory (don't know the name of it) that says the universe will one day die, then it will be nothing but void for a while, and eventually ripples will create another universe, and it recycles infinitely. That's just simplified.

If this is the case, then eventually things will repeat. The might even be another earth at some point. Or even an entire universe full of Earths.

If not, then you MIGHT be able to find something that is extremely similar.

[removed]

Just cuz the word identical gets used like it's subjective that doesn't mean it is.

Man y'all are hedging. If the universe is finite, even though it's insanely massive, it's like a hair short of impossible. If it's infinite then there are infinite identical copies of everything.

What's weird to me is that in an infinite universe where anything could happen there's no reason why dinosaurs could have lived without going extinct or even a different type of animal evolving with intelligence completely different to humans. Aliens to us.

[removed]

Wow. Motherfuckers in this post do not like probability theory and statistics.

Unlikely, yes. Impossible, no. It's like the premise of putting a bunch of monkeys in a room with typewriters, on a long enough timeline one of them will eventually produce a copy of a Shakespeare play just by sheer chance.

The thing is that the chemical composition of the material the planets are made from would match that of the planetary disk surrounding the parent star. The odds are that signature will be different for different stars, but will be very similar for the planets in that system.

yes. https://en.wikipedia.org/wiki/Law_of_large_numbers

Exactly identical? No. Varying degrees of similar? Yes

Absolutely identical? Highly unlikely.

However, since the universe is considered infinite, the law of large numbers takes over.

Which means there will be. It's just not common.

Among billions and billions of planets, surely you can find a pair that are pretty similar to each other. Like rocks: they're all different until you look closely for a comparable pair. It's just a matter of deciding how similar they have to be before you declare them identical, and that's a personal decision.

IF universe is infinite the patterns must repeat at some point.

Yes unlikely by the mathematical definition but not impossible.

Have you read about panpsychism? It is somewhat aligned with this idea. Rather than say you were someone else in another life, you could also say they were you in this life. We're all the same consciousness in all of the lives, perhaps all at once as you mentioned. We're the expression of the same fundamental force of consciousness.

Akin to saying we are all drops of water in the waves of the ocean, and at one time we were shaped as another drop of water that you know of. This is irrelevant to say because we are all part of the same body of water, and as such, are the same. We are more like features which emerge from it occasionally in various forms, constantly changing was we splash and ripple, eventually sinking back into the ocean we came from.

This isn't strictly what panpsychism is or what it means; there are plenty of hypotheses around what consciousness being a ubiquitous feature of the universe would really mean, with that being just one interpretation.

I really like to think about it. I'm not a panpsychist, but I'm not opposed to the possibilities either. I am a big fan of the idea that we're all made from the same stuff, with the same core "being", perhaps expressed differently through how our physical bodies develop. I can't be upset with people as much if I imagine their circumstance is largely a product of how their physical development played out, and more or less, they are me. Fundamentally they're exactly what I am, expressed slightly differently by forces they largely have no control over.

It's also neat to consider consciousness as a force of the universe, similar to gravity. Why does gravity exist, and what's it for? Well, maybe nothing. Same with consciousness. It's simply there. It's part of how the universe works.

Maybe we're within the atoms of a larger being, and we're conduits of its own consciousness. Like electricity flowing through a circuit to a co-processor. We're the tiny neural network within it, computing all these simulations to help it understand itself better.

Disclaimer: I don't know anything

>we can't entirely bootstrap the exploration of the solar system with such a limited resource

I doubt we can even bootstrap a Moon base, to be honest. Unless a method to extract necessary resources from solar power and cracking rocks is baked into the initial build, we'll burn through the ice and then flap our arms about in alarm when it starts to run out...then spend a fortune in a rush job to implement the resource extraction at the last minute 🤦‍♂️

It's just pressure. Gasses expand until the pressure is equalized. As the rocket gets higher, the exhaust gasses expand more as the ambient pressure gets lower.

The idea that everything expanded from a singularity doesn't imply a centre. Everything was smaller previously and now its bigger but it didn't have a centre at either time.

Yeah, and its a long enough time that you can't build an animation out of it, unlike this:

https://www.youtube.com/watch?v=fpWROGf5bPk

There is no evidence of worm holes. Maybe in quantum computers but not out in space.

If you read the article it would actually explain what happened.

Just to be clear this isn't a time lapse. It's a single photos that has capture the galaxy at three different points in time. This is possible due to gravitational lensing. Light from the galaxy took three paths to get to us, each one longer than the last.

You can't watch a single galaxy evolve as they evolve over billions of years. Instead you look for galaxies at different stages in their evolution and piece them together.

They are able to measure the mass of the galaxy and compare that to the mass they can see to figure out how much is dark matter.

[removed]

Yes. However we can't look all the way back to the Big Bang. The farthest back in time we can look with light is the Cosmic Microwave Background radiation or the CMB. After the Big Bang the universe was too hot for atoms to form. Electrons had too much energy. This plasma was opaque to light. Any light that was emitted was quickly reabsorbed and then reemitted. About 370,000 years after the Big Bang the universe kinda instantly everywhere cooled down to a temperature where atoms could form and suddenly light was able to travel arbitrarily far. This light is the CMB. This is a major piece of evidence supporting the Big Bang. No matter where you look you will see the CMB. It covers the entire universe.

To see past the CMB we will need to use something other than light. Scientists are hoping it will be possible to use gravitational waves or neutrinos to detect their equivalent of the CMB but both of those would have originated from the Big Bang or right after it as neither are blocked by plasma.