The "dark matter" flowchart

Whilst doing research for a dark matter blog post, I came across this Divine thing of manifest beauty.

It made me (a) laugh and (b) feel less bad about the ambiguities in aspects of my field of condensed matter.

Physicist humour

I can only describe this as a work of sheer genius.
I am the first to accept that this may say more about me than the picture.

via Mr Eugenidies and Mr Worstall