Designs for a more "physics-ish" 404 page?

Question

This is how our current 404 page looks like.  

I think we need a more "physics-ish" 404 page. Use this thread to suggest 404 page designs. It doesn't have to be polished, and just a screenshot is enough, you don't need to actually make such a page or show the HTML or whatever. 

Once we decide on a particular design, the page will be actually made and polished with the drafts shown here before the final design is actually published.  

By the way, I hope this can be accomplished reasonably easily. I tried to find the code that generates the 404 page. In Q2A core, it is done through the core itself, and not a theme, but I hope that an advanced theme can do it too.  

Answer 1

If needed, we could add an extra error message saying "Page not found" at the top.  

Answer 2

I think it'd be nice to have a whole set of possible messages, each associated with some equation which has zero on the right hand side. It'd look something like this:

"404; Did you just [insert operation that yields zero*]? Because there's nothing here! (Insert relevant equation**)"

*Examples; (**Corresponding equations):

1. symmetrize the electromagnetic field strength tensor $\bigl(F^{(\mu\nu)}=0\bigr)$

2. take a covariant derivative of the metric $\bigl(\nabla_\rho g_{\mu\nu}=0\bigr)$

3. calculate a lightlike interval $\bigl(ds^2=0\bigr)$

4. vary the action of the internet $\bigl(\delta S=0\bigr)$

5. take the d'Alembertian of a massless field $\bigl(\square\phi=0\bigr)$

6. check the Bianchi identities $\bigl(\nabla_{[\mu}F_{\nu\sigma]}=0\bigr)\ \text{or}\ \bigl(\nabla_{[\mu}R_{\nu\sigma]}=0\bigr)$

feel free to add other/better ones if you'd like

Comments

I like these, but I think that many of them can't be considered graduate-level. 

Answer 3

All these options are really good; I like all of them. Perhaps we can create some sort of randomization code that will choose one of these at random and put it on the 404 page? This may, of course, be a stupid idea, but I would personally find it very fun!

Answer 4

If needed, we could add an extra error message saying "Page not found" at the top.

Answer 5

something like

''Page not found: The probability of creating the requested page was too close to zero.''