grouch, because the word is misused and because the "common" usage of the word
implies high end precision, a whole generation of sailors believe it is
perfectly safe to wonder around among the rocks in fog, with just a compass and
speed indicator onboard. In fact, the USPS teaches that very nav system as
indeed a precision nav system. Nevermind, that just 25 years ago boats stew
ped enough to be caught near the rock in fog often ended up on the rocks before
the fog lifted.

you can call it Santa Claus, if you wish, but it ain't.

but it does not change the fact that
"dead" as used the context of navigation is incorrect usage as to what the
word
"dead" means.

With all that hogwash, you must own some very clean pigs. The meaning of any
word is what it is commonly understood to communicate. Nearly all naigators
use
the term "dead reckoning" and understand what it means. Parsing the word
"dead"
is a useful exercise only for NG trolls and those of us stupid enough to
respond to them.