Comment on Extremely common red dwarf L
lugal@sopuli.xyz 3 hours agoI somewhat agree with your sentiment. We know only about life on earth and assume we are the norm. There are arguments to make that changing a few parameters will have a negative effect but we might just be a “local optimum” and have no idea what the other local optimums (or even absolute ones) look like.
Then again, we can make educated guesses and I guess the scientists know that that’s what they are doing. But raising research money is easier if you claim to search for alien life.
zout@fedia.io 3 hours ago
If you look at stuff like the purple earth hypothises, the Canfield ocean, I'd definitely go with life finds a way.
lugal@sopuli.xyz 3 hours ago
I don’t know either of these terms. Can you give me a tldr?
zout@fedia.io 2 hours ago
Purple earth hypothesis suggests that early photosynthesis wasn't chlorophil based, but on a simpler molecule (retinal) which is purple colored. The Canfield ocean was supposed to have followed this time yielding a turquoise life, where the ocean was anoxic and sulfidic. That was then replaced during the great oxigenation event which lead to the current green earth.