the rubin figure

[McWhopper]

look familiar? it's called the rubin figure.


you see a white vase in the foreground, and a solid background.

who's to say that there is an actual form in the background? it's just an allusion.




look here:




now look here:



there is nothing on the background.

i just thought that was interesting.  

[AbrAbraxas]

illusion.

and it could be argued that there is no foreground either. there is no form, just lines.  

[tenchi_no_kashaku]

In theory lines are circles. Thus encompasing that it does and
does not have form.