We were told it was the surest thing in origin of life theories:
Here’s the problem with the RNA-only model (also known as the “RNA world hypothesis”), stated at its most succinct: RNA is too “sticky.”
That means that, like hydrogen for example, RNA bonds and will not detach from other molecules. In evolutionarily modern times, we know RNA is split from its fresh copies by enzymes, but enzymes arose after RNA. How did the first RNA strands come unstuck without help?
One potential answer: chimeric molecules. Today, it’s possible—although vanishingly rare—for humans to be chimeric, meaning they have more than one set of DNA. This is a favorite mechanism for crime TV shows, but only about 100 cases have ever been documented. Caroline Delbert, “It Sure Looks Like the RNA World Hypothesis Is Wrong” at Popular Mechanics
We’re not saying creation is looking better all the time but…it is looking better all the time. 😉
See also: Welcome to RNA World: The five-star hotel of origin-of-life theories