It’s the evidence from Sagan’s fiction and other popular writing that is especially provocative.
Sixty years ago, philosopher of science Thomas Kuhn listed what he described as the “symptoms” of a research field undergoing destabilizing change.
Universal functional requirements, but without the identity of material components — sounds like design.
There is a cookbook being proposed for “prebiotic soup recipes” — that is, combinations of non-living chemicals plausibly present on the early Earth.
Many people I know in the ID community are strongly interested in rethinking mutation, understanding it as a designed or regulated process.