Until we get any tangible proof of life outside Earth, there is no difference

Actually I don't think there is life outside of Earth. I think we are truly alone in this universe.

	▲	pfdietz 5 hours ago \| parent [-]
		I agree. The Fermi Argument, and the apparent rarity of K3 civilizations in other galaxies, is to me powerful evidence of the scarcity of life. At the least, this suggests SETI should focus on distant galaxies where the Fermi argument doesn't bite as much.

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ck2 6 hours ago | parent | prev [-]

There is likely simple basic life as advanced as bacteria around the universe

But high level life was likely a series of complex accidents that is not reproducible or would be radically different than us

One of my absolute favorite PBS Space Time on the subject

* https://www.youtube.com/watch?v=abvzkSJEhKk

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pfdietz 5 hours ago | parent [-]

> There is likely simple basic life as advanced as bacteria around the universe

What is the basis for this assertion?

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ck2 4 hours ago | parent [-]

single-cell "life" can be so simple that scientists can create it in a lab "SpudCell"

* https://www.science.org/content/article/lab-created-spudcell...

somewhere among 2 TRILLION planets in our galaxy there is a planet with enough atmosphere and magnetosphere to protect it from space radiation so there is likely bacteria

but complex life far more difficult and unlikely, very rare, as explained in the PBS Space Time I linked above, the "Cambrian Explosion"

* https://en.wikipedia.org/wiki/Cambrian_explosion

if there are viruses and fungi out there however, they could mutate eventually with enough permutations and outside stressors

that video explains the huge leap forward with DNA vs simple protein patterns

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pfdietz 3 hours ago | parent [-]

"SpudCell" already has 36 genes; the information encoded there basically cannot occur by random processes. There is still an enormous complexity gap between it and abiotic systems.

> somewhere among 2 TRILLION planets in our galaxy there is a planet with enough atmosphere and magnetosphere to protect it from space radiation so there is likely bacteria

I reject this conclusion; it certainly isn't justified by the links you provided.

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ck2 3 hours ago | parent [-]

you don't think there is even single-cell life anywhere else but Earth?

why would Earth be that incredibly unique?

it's even plausible Earth was accidentally seeded by panspermia (bacteria on comets)

	▲	pfdietz an hour ago \| parent [-]
		Sorry, when you make an assertion, you don't get to demand I justify questioning it. You need to explain why I should believe you. Your reversal of burden of proof is a red flag that you don't have a good argument. IMO, it is quite plausible that OoL is extremely unlikely and that our solar system is the only place where life occurs in the visible universe. Not proved, of course, but the possibility is by no means unreasonable.