> This is because to the human eye pixels are similar to points in math
> (i.e.has location, does not have extent). Therefor, a mental
"magnifying
> glass" (in order to be useful) needs to preserve the point-like property
> of pixels unaffected from the "zoom factor".
>
> Which means that what counts for line length is not number of pixels
> but the spaces between. See line of length 10, magnified:
>
> 0 1 2 3 4 5 6 7 8 9 0
> * * * * * * * * * * *
I doubt my eye (and whatever there's left behind it) would consider
0
*
having zero extent.