Sujet : Paging Ron Dean: video on the origin of the genetic code
De : arkalen (at) *nospam* proton.me (Arkalen)
Groupes : talk.originsDate : 07. May 2024, 16:14:23
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v1dggh$3an1q$1@dont-email.me>
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I had a short exchange with Ron Dean awhile ago in the "West Virginia Creationistm" thread (IIRC) where I gave my own understanding of what information is; @RonDean you said you basically agreed with it and the conversation didn't go further than that, although I'm curious what aspects of it you did agree with given I think we disagree on the implications in terms of the ability of information to arise without minds.
Anyway this is a video I thought you or others might find interesting in this context, if long videos are something you watch/listen to:
https://www.youtube.com/watch?v=8T3bN2k28_EIt's a 2-hour-long conversation between Jon Perry & Stephen Woodford on the "Jon Perry - Genetics & Evolution Stated Casually" channel entitled "Origin of the Genetic Code: What we do and do not know".
If 2 hours is too long there is a section in the middle called "Overview of Signalling in Biology" which goes over basically what my post said:
https://youtu.be/8T3bN2k28_E?feature=shared&t=2291And the description of how the genetic code works & how it could in principle have developed via mindless processes starts here:
https://youtu.be/8T3bN2k28_E?feature=shared&t=6086Basically it seems Stephen Woodford is an atheist Youtube who'd made a video arguing that DNA wasn't a language to argue against the idea that DNA was proof of God, and Jon Perry contacted him arguing that DNA *could* be understood as a language and the reason it wasn't proof of God wasn't that it wasn't a language but that languages don't require minds to arise. This video is the conversation between them going over that & Jon Perry explaining the evolution of signalling systems in biology and how it applies to DNA and the genetic code.
They go over the different kinds of signalling that occur in biology in all kinds of different situations, how cues can develop into signals, how this can happen with thinking minds but doesn't require them and can occur via biological evolution, the sense in which the genetic code constitutes such a signalling systems, etc.
(Main quibble I'd have with the video is that Jon Perry frames the genetic code as something that's interpreted by the ribosome, treating the ribosome as a black box but I'd have thought it was worth mentioning how the "code" is instantiated physically in the transfer RNAs)
(Also he discusses possible scenarios for the development of the genetic code based on RNA-World scenarios and having gotten into the alkaline hydrothermal vent hypothesis I can't unsee the flaws of those kinds of scenarios. The RNA-peptide globs would be better at "surviving", what kind of "survival" even matters in a pre-life scenario? Shouldn't they be better at "replicating" and are you sure the two interact how your argument needs? Replace "surviving" with "promoting CO2 fixation in the protocell" and NOW you have a process that will actually lead to more of those being around).