[briancl]

I find it funny that the comments here split across:

“I have no doubt that life emerged from an RNA first world”

and

“I have no doubt that life emerged from a metabolism first world”

Last I checked, nobody should have absolute certainty for how life began. Progress comes from skepticism. Have more doubt!

[pfdietz]

Given the instability of ribose even in plain pH 7 water, and the indiscriminate results of abiotic carbohydrate synthesis processes, I find the RNA-first hypothesis unlikely.

https://www.jstor.org/stable/2368016

[usrbinbash]

I do not doubt things just to doubt them however. Doubt has to be reasonable.