ID the Future Intelligent Design, Evolution, and Science Podcast
Topic

RNA world

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science laboratory test tubes , lab equipment for research new medical

Extravagant Claims: James Tour & Stephen Meyer Critique Origin of Life Research

On this ID The Future, we continue a four-part conversation series between philosopher of science Dr. Stephen Meyer, author of Signature in the Cell: DNA and the Evidence for Intelligent Design, and Dr. James Tour, a world-leading synthetic organic chemist at Rice University. Dr. Tour has recently been engaged in a series of back-and-forth responses to attacks on his work from YouTube science communicator Dave Farina. This has given Tour a new opportunity to critique experts in the field of abiogenesis and allows an interested public to better evaluate both sides of the argument. In Part 2, Meyer and Tour discuss the work and claims of origin of life researcher Lee Cronin. They begin with a review of the four classes of molecules before critiquing Cronin’s foremose reaction experiments and his claims to have found a process that’s analogous to cell division. Tour also discusses the importance of chirality, as well as how amino acids behave in aqueous solutions. Turns out that “warm little pond” story we’ve been told for many years is chemically implausible. The discussion rounds out with a reminder of the information problem, something Meyer writes about at length in Signature in the Cell. Have prebiotic chemists made any progress on the sequence specificity problem? None whatsoever, says Dr. Tour. This is Part 2 of a four-part series of conversations. Watch the video versions of these at Dr. Meyer’s YouTube channel: @DrStephenMeyer Read More ›

RNA World in a World of Hurt

On this ID the Future, biophysicist Cornelius Hunter and host Eric Anderson discuss the RNA World hypothesis, an explanation for how the first self-reproducing organism might have arisen via mindless chemical processes. Hunter and Anderson have each written on the topic, and together they unpack some of the many and growing problems with this RNA-first explanation for the origin of life. They also spotlight some recent admissions in mainstream scientific publications that it’s time to move on from the cherished but embattled RNA World. The conversation pivots off of a recent essay by Hunter at Evolution News, “RNA World: Repeated Downfalls, Repeated Resurrections.” For more on the challenges of creating the first self-reproducing biological entity, see Eric Anderson’s Chapter 3 of Evolution and Intelligent Design in a Nutshell.

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Golden bubbles of sludge gas on a swamp

New Origin-of-Life Proposal Revives a Hopeful Monster

On this episode of ID the Future, host Eric Anderson talks with scientist and fellow engineer Rob Stadler about a recent origin-of-life paper and how the authors paint themselves into a corner. The context for the paper is this: Decades of research have undermined the three great hopes for a purely naturalistic origin of life — scenarios starting with some sort of metabolism, scenarios starting with some kind of membrane, and scenarios starting with RNA. All three are necessary for cellular life; none seems able to have come ahead of the others. So now some recent work described in an article in New Scientist suggests it all happened at once in a sort of “chemical big bang.” It’s the return of an old idea long ago dismissed as too improbable. Is this “hopeful monster” plausible after all? As Anderson and Stadler show, there are numerous hidden assumptions and imaginary entities lurking in the proposal, which when surfaced, call its soundness into question.