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Re: [ontolog-forum] Time representation

To: "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: Duane Nickull <dnickull@xxxxxxxxx>
Date: Tue, 22 Jan 2008 11:38:19 -0800
Message-id: <C3BB862B.B920%dnickull@xxxxxxxxx>

On 1/22/08 11:29 AM, "John F. Sowa" <sowa@xxxxxxxxxxx> wrote:    (01)

> When we say "See you at noon", we certainly don't mean at
> 12:00:00.000000000000000000...
> If several of us gather "at noon".  What criterion would you
> suggest for claiming that we all arrived "on time"?
> I'm willing to admit that perhaps it's impossible to define a
> domain-independent axiomatization that could answer such questions.    (02)

Contrast the train service in Switzerland vs. the bus schedule in Vancouver.
In the context of the railroad industry in Switzerland, one could literally
set their watch to a precision of within 1 minute from the point a train
stops moving on the tracks upon arriving at a station. In Vancouver, the bus
schedules with frequencies of more than one bus every ten minutes are
disregarded as each bus can be up to to 8 minutes before or behind.  In
Vancouver, when we say noon, we really mean anytime between 12:10 and 12:45.
No one arrives right at noon in my circle of friends except for my German
wife.    (03)

;-)    (04)

Duane    (05)

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