From: John Beckett 

"Geo"  wrote in message
news::
> I don't think I'm being clear with the POV thing. Ok so you are standing on
> the ground, I now dig a really deep hole and push you into it, Oh look you
> had more potential energy than you thought.

You had to do a lot of work to dig that hole. Also, I have to do a fair bit
of work just to stand upright.

John

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