I found the following picture being used to represent a paradox – although I am not so sure that everyone confronted with this object would necessarily get it. I wonder how many, in practice, would be persuaded by the utility of the object to use it as an ashtray rather than respond to the message of the symbol it contains. Furthermore, what would people be inclined to do if the ashtray already had ash in it, as opposed to it being in pristine condition?
