\setupinteraction[state=start]

\starttext
\subject{All equations\footnote{according to \goto{XKCD}[url(https://xkcd.com/2034/)], explained \goto{here}[url(https://www.explainxkcd.com/wiki/index.php/2034:_Equations)]}...}

... of Kinematics:
\startformula E = K_0t + \frac{1}{2}\rho vt^2 \stopformula

... of Number Theory:
\startformula K_n = \sum^\infty_{i=0}\sum^\infty_{\pi=0}(n-\pi)(i+e^{\pi-\infty})\stopformula

... of Fluid Dynamics:
\startformula
\frac{\delta}{\delta t}\nabla\cdot\rho = \frac{8}{23}\oiint\rho\ ds\ dt \cdot \rho \frac{\delta}{\delta\nabla}
\stopformula

... of Quantum Mechanics:
\startformula |\Psi_{x,y}\rangle=A(\Psi)A(|x\rangle\otimes |y\rangle)\stopformula

... of Chemistry:
\startformula CH_4 + OH + HEAT \rightarrow H_2O + CH_2 + H_2EAT\stopformula

... of Quantum Gravity:
\startformula SU(2)U(I) \times SU(U(2))\stopformula

... of Gauge Theory:
\startformula
S_g =
\frac{-1}{2\bar{\epsilon}} i \delta
\left(
\xi_0 \mathring{+} \rho_\epsilon \rho_v^{abc}\cdot\eta_0
\right)
f̵_a^0 a\lambda(\rotate[rotation=180,location=high]{\xi})\psi(O_a)
\stopformula

... of Cosmology:
\startformula H(t) + \Omega + G \cdot \Lambda\ ...
\startmathcases
\NC ... > 0 \TC (Hubble Model) \NR
\NC ... = 0 \TC (Flat Squere Model) \NR
\NC ... < 0 \TC (Bright Dark Matter Model) \NR
\stopmathcases
\stopformula

... of Truly Deep Physics: \startformula \hat{H} - u̧_0 = 0\stopformula

\page
\subject{Original}
\externalfigure[https://imgs.xkcd.com/comics/equations.png][width=\textwidth]
\stoptext