admin for

The contact form appears to be down (503 bad gateway on submit), and
if it is actively maintained, I would be very interested in talking to
someone about how it works, and how its path tracing simulations or
estimates compare with real-world numbers. (or if it is driven by real
world numbers, how it compares to what we observe)

Some of the information in the output of the path trace tool is less
than verbose.