..Not in the least bit Pynchonic -- space

[Richard Fiero]

Indeed. Dimensions are a very nineteenth century concept. That is why 
dimensions are mentioned so often in AtD. We would do well to forget 
about dimensions along with the nineteenth century notion that 
entropy implies heat death.
Time is not a dimension. It is an arrow.
A correspondence course in first semester calculus can do wonders to 
deepen one's insight into GR.


David Morris wrote:
>This thread is weightless, like objects in space.
>
>On Tue, Feb 7, 2012 at 12:21 PM,  <kelber at mindspring.com> wrote:
> > But how real is the real?  Are atoms real?  We can infer their 
> structure, but not view it directly.  The model that many of us 
> here were raised on, the solar system analog, is just plain 
> wrong.  Still, it was an introduction, a useful crutch, to get us 
> (as school kids) thinking about atoms.  The quantum model may be 
> closer to reality, but it "feels" much more abstract. Imagining a 
> two-dimensional world is beyond our abilities, but only if we think 
> about it too much.  If we accept it, at face value, as a 
> Flatlands-style flat world, then it's a useful crutch for thinking 
> about the concept of dimensions.
> >
> > Laura