Life on earth started about 3.5 billion years ago. I would assume abiogenesis happened because the conditions were right.
Would the current earth conditions allow for new abiogenesis and completely independent (in terms of phylogeny, not ecology)?
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Sign up to join this communityLife on earth started about 3.5 billion years ago. I would assume abiogenesis happened because the conditions were right.
Would the current earth conditions allow for new abiogenesis and completely independent (in terms of phylogeny, not ecology)?
I will argue that yes, it is POSSIBLE. It is possible on earth like on other planets. Given enough time, matter, and energy, "something" that resembles life will emerge. The problem I see, however, is that life has already conquered our planet, so any "new living thing" will have to compete with other long-time adapted living organisms, in practice, no chance of survival. The right conditions you refer to are the ones that allowed "life as we know it" to emerge. Given other conditions (other chemicals, other energy forms, etc), something completely different will emerge.
Of course, without final proves, this is still speculation.
Some speculative links:
http://speculativeevolution.wikia.com/wiki/Alternative_biochemistry
http://www.nature.com/news/2009/090513/full/news.2009.471.html
Unlikely
Th early earth lacked oxygen which is very harsh on organic chemistry and lacked living things gobbling up all the organic molecules. precursor molecules form all the time on earth but living things gobble them very quickly. Both of those things makes abiogenesis basically impossible on the current earth. Abiogenesis is all but impossible when you have complex evolved life competing for the same resources, fortunately the early earth lacked that.