XKCD's take on relativity, quantum mechanics and BTSM forums

[Ibix]

I think he's pretty much nailed the relativity, QM and BTSM forums:
https://xkcd.com/1861/
or https://m.xkcd.com/1861/ for mobile users.

 

[scottdave]

Fluid Dynamics... right up there with Relativity and QM Maybe even more mathematics.

 

[Ygggdrasil]

When I read the comic, how accurately it describes posts at Physics Forum was the first thing I thought about.

Image embeded for convenience