this post was submitted on 04 Nov 2025
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Would it matter? We don’t have any way of getting there.
Of course, it does matter. First for the same reason any bit of information matters in itself, regardless of application : advancing human knowledge. Second, observing a possibly habitable world and its host star system clues us in to its formation, its atmosphere retention, potential relationship with its satellites, and so on. Having another subject to study besides Earth has potential ramifications in many fields and may indirectly bring positive consequences right here.
The question "could it be Earth 2.0" still doesn't matter.
We'll never have a way of getting there, unless we discover a fundamental misunderstanding about how the universe works.
Is it fascinating info that leads to a better understanding of nature and the universe? Yes. But that's irrelevant to the question posed. Had that been the focus, rather than a click-bait nonsensical title, it wouldn't receive the criticism it deserves.
"Earth 2" is just a way to say "a planet comparable to Earth", and subsequently "could it harbor life?", it is absolutely part of the inquiry. Do you read "earth 2" as "the planet we should migrate to?" I don't think that's implied although i can't speak for the author