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/sci/ - Science & Math

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3974997 No.3974997 [Reply] [Original]

why i cannot into autocatalysis?

also abiogenesis general I guess.

>> No.3975025

Evidence for photosynthesis on Earth first appears roughly 3.5 billion years ago.

What the fuck. And how did we skip straight to autotrophs?

>> No.3975050
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3975050

>>3975025
Photosynthetic autotrophs probably evolved from iron- or sulfur-eating autotrophs.

>> No.3975058
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3975058

>>3975050
So is the whole "heterotrophs first" thing no longer popular?

Still find it crazy you have complex biotic life that early in Earth's history. It seems to pop up as soon as the planet is remotely habitable.

I'm not saying exogenesis, but I'm saying it's exogenesis.

>> No.3975093

>>3975058
Yeh, I thought autotrophes started happening because of heterotrophes endocyting a granule-ish kind of bacterium, like the mitochondria..

>> No.3975099
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3975099

>>3975058
Imagine that for a few million years there is a planet full of all sorts of chemicals. The odds of life emerging at some point are good just because of sheer sample size.

>> No.3975115

>>3975099
I'm not an intelligent design fag, but since we can't actually describe the process by which that happens we can't REALLY run the odds. It's just an educated guess.

inb4 so is all of science

>> No.3975147

>>3975115

well I've been doing some figuring, and I figure that the odds are probably a tad greater than one in 10,000,000,000,000,000,000,000