not first hand. But I do have 2 of my
own, and was there every step of the way.
The nature of the pH conversation just reminded me of my conversation with our doctor back then.
I was in awe of all the "stuff" required to give birth. ultrasounds, fetal heart monitors, lots of things that go "Bing".
I remember saying to him at the time. "How in the heck did humans survive for all those millennia without all this stuff?"
His answer was simply: "many died"
I'm not sure why, but I felt there was a conversational parallel here.