Re: Natural keys vs Aritficial Keys
Date: Tue, 19 May 2009 02:19:00 -0700 (PDT)
Message-ID: <368e6bbc-8b2d-465a-9de7-f99c2f3ea029_at_i28g2000prd.googlegroups.com>
On May 19, 11:48 am, paul c <toledobythe..._at_oohay.ac> wrote:
> David BL wrote:
> > On May 19, 1:18 am, paul c <toledobythe..._at_oohay.ac> wrote:
> >> Most people I know don't abstract at all.
>
> > Do you work in a morgue?
>
> I'm staring to think so.
LOL. Anyway, my point was that all conscious humans, even particularly challenged ones utilise abstractions in one form or another.
I recall reading about an experiment on mice that demonstrated that they could at some level understand the abstract concept of numbers by counting the objects presented on a card in order to avoid a nasty electric shock by conditionally jumping over a barrier. To be judged successful the mouse had to be able to count objects it had never seen before. It was claimed that mice can count up to 3. Received on Tue May 19 2009 - 11:19:00 CEST