optical illusion

There it is, apparently. 

There's speculation on the internet that these legs have been oiled up to create this super shiny look for the picture. But... maybe not? There's some debate about that. Consider this:



via @jamesrbuk, @pezsez, @annekamccarthy

Now look again. Paint? or Oil?

People seriously have no idea what they are looking at here: 



via @G0DREGUI, @RexKline, @jaredzicari_


But we do have an explanation:



via @ColtonMorano