NavList:

In the past sight reduction math was very difficult. Yet, after learning much from this list it's mostly easy.

There must be a subconscience element to celnav which possibly presents to the practioners thereof this proposition; "no matter how hard you try you'll will never know exactly where you are". Some reply, "I'll keep trying", others, "I'm satisfied with an aproximate position".

Who knows?

Near his end Captain Ahab had a angry view of CelNav and went back to (joke time) "dead" reckoning.

Moby Dick- CHAPTER 118. The Quadrant.

Then gazing at his quadrant, and handling, one after the other, its numerous cabalistical contrivances, he pondered again, and muttered: "Foolish toy! babies' plaything of haughty Admirals, and Commodores, and Captains; the world brags of thee, of thy cunning and might; but what after all canst thou do, but tell the poor, pitiful point, where thou thyself happenest to be on this wide planet, and the hand that holds thee: no! not one jot more! Thou canst not tell where one drop of water or one grain of sand will be to-morrow noon; and yet with thy impotence thou insultest the sun! Science! Curse thee, thou vain toy; and cursed be all the things that cast man's eyes aloft to that heaven, whose live vividness but scorches him, as these old eyes are even now scorched with thy light, O sun! Level by nature to this earth's horizon are the glances of man's eyes; not shot from the crown of his head, as if God had meant him to gaze on his firmament. Curse thee, thou quadrant!" dashing it to the deck, "no longer will I guide my earthly way by thee; the level ship's compass, and the level deadreckoning, by log and by line; these shall conduct me, and show me my place on the sea. Aye," lighting from the boat to the deck, "thus I trample on thee, thou paltry thing that feebly pointest on high; thus I split and destroy thee!"