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From: David Abrahams (dave_at_[hidden])
Date: 2004-01-05 10:17:58

"David B. Held" <dheld_at_[hidden]> writes:

> "Andy Little" <andy_at_[hidden]> wrote in message
> news:bta7us$bkg$
>> [...]
>> A physical-quantity is made of powers of The Seven dimensions:
>> length, mass, time, temperature, current, amount-of-substance,
>> luminous intensity.
>> (aside -please not lets get complicated :-) )
>> [...]
>> There are only 7 dimensions. Thats it.
>> [...]
> Surely this is ridiculous? I can see an extreme reductionist arguing
> that you only need dimensions for space, time, and the fundamental
> forces. And if you really want to get anal, then you could equate
> space and time, and end up with four dimensions (distance, mass,
> electroweak charge, strong charge). Everything else is derived,
> right? And if you buy superstring theory or quantum gravity, then
> you could probably get away with just one or two dimensions, right?
> But how useful is that?

Right. Reductionism is dangerous, even to Physics. Get ahold of
Phil Anderson's paper called "More is Different" if you're
interested (Science, Aug 4, 1972).

Dave Abrahams
Boost Consulting

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