Darren New wrote:
> scott wrote:
>> I think the key point is that most things have a force that acts in 
>> the opposite direction of the movement, 
> 
> I've always found this to be quite fascinating. Why should that be?

It seems like conservation of energy and the second law of 
thermodynamics would essentially require this (barring situations where 
there's some external source of energy).

If you had an effect that reinforced itself without using some external 
source of energy then any measurable consequence of this effect would 
have to increase as a system approached a high-entropy state.  Since 
there's generally not much interesting to measure in a maximal entropy 
state it shouldn't be a surprise that there's dampening forces everywhere.

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