What is the signal-to-noise ratio of phase-contrast imaging? Can it be infinite?

A scientific publication, describing a puzzle which tackles an apparent paradox in the physics of optical measurement. Read the publication here: https://calico.github.io/adaptive_interference_inference (hosted via the Calico Labs institutional GitHub account) or here: https://andrewgyork.github.io/adaptive_interference_inference (hosted via Andrew York's personal GitHub account)

This repository holds a self-contained scientific publication. It contains:

• HTML, javascript, CSS, fonts, and images (index.html, and the javascript, stylesheets, fonts, and images directories)
• A (limited) PDF version of the publication; note that this does not include animated/interactive figures.
• Code which implements part of the puzzle (in the code directory). You can run and modify this code to explore the apparent paradox.

This work is licensed under a Creative Commons Attribution 4.0 International License.