A surprising coincidence

        (1) by a truth of practical reason, absent knowledge of whether there exists
          a ground (stable ground) and, if so, what it consists in, that knowledge
          (ground knowledge) is itself a ground (the default ground)
            : re `^*\(\d+\) (.+)`s see `^*argue\+ that, ${same}`p @ default/._/text.notes.brec
        (2) despite long efforts [in the past], ultimately|{in the end} {we have}|{∃ among us}
          (at present) no settled consensus on the ground question [or its likes]
            : re `the ground question` viz. `whether there exists a ground.+and.+what it consists in`p
        (3) we know|have (at present) of no way|method to [reliably]
          {gauge|determine|predict an upper limit|bound on}|bound
          {how long}|{the period|{length of time}} it could|might take to acquire ground knowledge
          or deal with any stable ground we thereby apprehend

        : see `^*\(1\)`
        : see `^*\(2\)`
        : see `^*\(3\)` : ∴ (4)
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        (4) practical reason (given our present state of knowledge) sanctions and deems necessary a will
          to endure for a period of time that (in present prospect) would be open-ended and likely long
        (5) natural selection has predisposed us to endure over the long term
        (6) a safehold highly fit to secure the long-term survival of populations
          extends throughout the cosmos
            : ad `long-term` : over periods on the scale of cosmogonal time,
              as opposed to the (relatively short) scale of geogenic time
                : re `scale of cosmogonal time`
                  see `stability on the longer ${same}` @ ~/work/safehold/40.observation.brec
                : re `\(relatively short\) scale of geogenic time`
                  see `the scope.+not restricted to.+the ${same}`s @ ~/work/safehold/40.observation.brec
            : re `(a safehold.+to secure.+populations)`
              see `${1} of beings \(like us\)`p @ ~/work/safehold/40.observation.brec

        : see `^*\(4\)`
        : see `^*\(5\)`
        : see `^*\(6\)` : ∴ (7)
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        (7) three objects of seemingly independent origin coincide: those to which i) natural selection
          has predisposed us, ii) reason would direct our wills, and iii) the safehold is a fit means

    - the coincidence surprises because it lacks for an obvious explanation