So, did JWST find life from exoplanet K2-18b?

"Scientists using JWST have spotted life-linked molecules on a distant exoplanet, matching signs we only see on Earth from living organisms. The evidence isn’t final, but it’s compelling — and could change everything. Credit: SciTechDaily.com" (ScitechDaily, Are We Finally Not Alone? Webb Detects Life’s Signature on Distant Ocean Planet)

"They’ve detected sulfur-based molecules in the atmosphere of exoplanet K2-18b that, on Earth, are only produced by living organisms. While the evidence isn’t conclusive yet, it matches predictions for a “Hycean” world — one potentially covered in oceans and capable of hosting microbial life. If further observations confirm these findings, it could mark a turning point in our search for extraterrestrial life." (ScitechDaily, Are We Finally Not Alone? Webb Detects Life’s Signature on Distant Ocean Planet)

The fact is this. The exoplanet K2-18b gives the strongest mark of life ever. Another fact is that the exoplanet is far away from Earth. Confirming the alien organism or denying it requires a visit to that planet. And that is too far in the future. Some researchers say that it's possible to make dimethyl sulfide from non-organic sources in laboratories. The counterargument is this. Are the university laboratories the same thing as the exoplanet's atmosphere? 

The thing is that the exoplanet K2-18b gave a suspicion. That there can be lifeforms. 

Confirming those life forms is very difficult. So, the K2-18b remains a mystery and is the best candidate for life harbor that researchers have. 

"Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious. Using data from the James Webb Space Telescope (JWST), the astronomers, led by the University of Cambridge, have detected the chemical fingerprints of dimethyl sulfide (DMS) and/or dimethyl disulfide (DMDS), in the atmosphere of the exoplanet K2-18b, which orbits its star in the habitable zone. Credit: A. Smith, N. Madhusudhan (University of Cambridge)"  (ScitechDaily, Are We Finally Not Alone? Webb Detects Life’s Signature on Distant Ocean Planet)

And that is one of the things that can make the alien hunt interesting. The algae and dummy aliens like bacteria don't mean that our existence as the lone or only known intelligent species ends. 

Even if. The K2-18b has some alien species in its oceans. 

That doesn't mean that. We can interact with those species. 

Interaction requires intelligence. We cannot interact with some snail on the exoplanet. 

So even if we find life forms from that exoplanet and those lifeforms are some kind of snails. That means we are still alone. 

But the intelligent lifeforms can be harder to find than we even think. The intelligent lifeform might not answer our signals. They might be the same way carefully. And scared to answer the suspicious as we are. Those aliens might think about the SETI program the same way as we think. They must be in the same way, afraid of the first contact as we are. 

And maybe those hypothetical aliens' first contact with other civilizations is with humans or us. They don't either know what kind of civilization sends signals. They don't have any knowledge of us. Just like. We will not have any knowledge of them. 

And if we see the alien message. There is always the possibility. That we face some kind of trap. In the worst case, the bullet that travels light speed ends our existence. That is one a very good point about that discussion. 

https://scitechdaily.com/are-we-finally-not-alone-webb-detects-lifes-signature-on-distant-ocean-planet/