Christian here (and very long-time lurker), of more or less the "I believe on faith" stripe. I've noticed that in addition to the uses you mention here, /Mere Christianity/ serves as a summary of doctrine. (I can't really speak to other apologetics.)
I've found that Sunday school and sermons generally incline much more to vague, feel-good platitudes than to actual, you know, positive or normative claims. You're left in this position of "OK, I have [for whatever reason] bought into the Church and its credibility---now what do these people act...
Couple of thoughts re: NIST as an institution:
- FWIW NIST, both at Gaithersburg and Boulder, is very well-regarded in AMO physics and slices of condensed matter. Bill Phillips (https://www.nist.gov/people/william-d-phillips) is one big name there, but AIUI they do a whole bunch of cool stuff. Which doesn't say much one way or the other about how the AI Safety Institute will go! But NIST has a record of producing, or at least sheltering, very good work in the general vicinity of their remit.
- Don't knock metrology! It's really, really hard, subtle, and creative
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