We’re assuming that alien life requires the same things we do, why?
In: Biology
We have lifeforms on earth that don’t require either of those things, and aren’t based on carbon. That allows us to assume that life can develop pretty much everywhere. With that assumption we can’t predict anything, and we don’t have any parameters to search for. That’s why we look for planets that could support our life instead of searching Venus for bacteria in the crust 2km down.
I could be wrong, but this makes sense.
https://science.nasa.gov/science-news/science-at-nasa/2010/02dec_monolake
https://www.google.com/amp/s/www.independent.co.uk/news/science/deep-cave-microbe-kidd-mine-university-toronto-aliens-evolution-a9097341.html%3famp
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