(2025-01-04, 03:21 PM)Smaw Wrote: Laird might have something more interesting in the way of a reply to the question you're asking, but to me it's less about defending ID here and more about highlighting how it very much seems like the majority of DI's heavy hitters are in fact actual charlatans who manipulate data, spread misinformation, ignore valid criticsm and are in fact more focused on spreading archaic creationist myths (which are proven by leaked documents about the organization that say that's exactly what they're doing) than any kind of good scientific research.
Is there good defenses of ID to be had? Maybe. But it's pretty painfully aparent that it's not to be had from anyone in that crew.
Come on, there is no point in throwing around accusations like that - can't you come up with something specific - which data has been manipulated? Once we know that, I guess we will also know whether the misinformation in question lived up to its name.
Remember that I am no supporter of the religious dimension to the DI - I simply think the evidence against RM+NS is pretty overwhelming.
Discussions of this kind seem to rely on some simple misconceptions:
1) Most amino acids and sugars come in two forms - L and D - optical active isomers. If you take a molecular model for any of these compounds and view it through a mirror you will the corresponding optical isomer. There is no known way to synthesise a pure L or a pure D form without using some optically active starting material. All the various biopolymers are built from one isomer type. I used to think that this fact only meant that once life had started with one form it would continue with that arbitrary choice. James Tour made it clear to me in one of his videos that the real problem here is that these mirror-image molecules can utterly corrupt a growing biopolymer (DNA, RNA, Protein, or polysaccharide - take your pick) because these can add to the chain, but will kink the chain.
2) DNA or RNA carry coded information. If you were to synthesise some DNA in pre-biotic conditions (in itself not a very easy proposition!), the code it would contain would be random. There is a vast difference between random DNA and DNA containing useful coded information - just as a memory stick filled with random bits would only be useful if useful data were then copied on to it.
3) James Tour also points out that organic synthesis in a lab is an exacting task. Reagents need to be pure, reactions often only work in a narrow temperature range, and often need to be quenched after a specific amount of time (to avoid unwanted further interactions) e.g. by pouring the reaction mixture on to dry ice or using liquid nitrogen. These extra requirements make random chemistry seem pretty unlikely to achieve much.
4) Multi-step organic reactions performed in a lab usually require each step to be performed and the desired intermediate purified before the next step can be attempted. This is because if the various bi-products are not removed, they will quickly cross-react to produce what chemists know as 'tar'. Again, none of this will go on in the pre-biotic soup.
I think that formidable list of problems rules out ab-initio creation of life, so in my next post I'll look at the problems facing its subsequent evolution by 'natural selection'.
David