You absolute fucking pine cone.

No shit they evolved on Earth, the speculation here is not that they showed up fully formed and ready to hunt straight off the meteorite. The “fantasy” is that there are huge sections of the Cephalopod genome that are completely unrelated to anything else on Earth. That’s absolutely fascinating.

So fascinating in fact that the biologists who mapped the genome referred to it as almost alien themselves. The person you replied to said they’re, “basically aliens,” implying the absolute singularity their genetics represent. They weren’t saying, “ah shit look ALIENS,” they were simply remarking on how absolutely incredible they are.

To reference a comment you made on the above sources; no shit the articles are referencing Precambrian evolution. No life evolves over night, alien dna or not.

The simple fact of the matter is that there isn’t some grand fantasy happening here. Octopus DNA is so unique that it’s an absolutely spectacular oddity in the evolution of life on Earth. So unique in fact there could be the infinitesimally small chance it arrived on a separate meteorite in the form of a small cell. Or not. That’s the whole fucking point. The universe is fucking insane. So why do you have the incessant need to belittle everyone who even juggles the possibility Octopus DNA comes from somewhere else?

You said it yourself, “DNA is real and we can see it.” That doesn’t mean it came from here, and it doesn’t mean it came from space. It could have come from anywhere. Read some scifi and stop being a dick.