Walt, you really dig down to the bottom of the meaning of existence, at least in my view. We must find our own meaning, which itself must include our existence in nature. If we don't tend to our existence in nature, then we "commit suicide" by ignoring the forces in nature that will quickly kill us. An empirical philosophical framing of these issues is in two other "truth units" pieces, companions to the one you've read:

medium.com/@alexbennett-ap/truth-units-a-new-theory-of-truth-for-our-post-truth-world-9734119080c2

medium.com/@alexbennett-ap/truth-units-vs-relativism-bd69e18045ec