Looking for more? Next week I will cover "Top 5 Geant4 Physics Lists You Should Never Use."

It is over 1,000 pages of dense, technical, physics-heavy documentation. Newcomers often open it, search for "Hello World," find nothing, and close the tab in despair.

And when you finally get that G4Trajectory to draw a beautiful line through your detector, you will thank the manual—even if you just used it to find that one parameter name you forgot.

Decoding the Geant4 Manual: Your Survival Guide to the Bible of Particle Physics Simulation

But let’s be honest: