Code Review Diff-Size & Pace Simulator (2D)

Code review doesn't fail because teams skip it — it fails because a review still happens but stops catching anything once the diff gets too big or the reviewer moves too fast. This simulator turns that documented effect into a live 2D scan: pick a diff size, a review pace and a defect density, and watch a scan line sweep a grid representing the diff, resolving each hidden defect to caught or escaped in real time against a probability model grounded in published peer-review research. A second panel plots the two penalty curves live so you can see exactly why the predicted catch rate moved. Live readouts track the predicted catch probability, this run's caught/escaped defects, and the cumulative catch rate across every review you run.