In the end all I did was learning some standard configurations of optical instruments. That and ray optics made me pass. Of course i forgot almost everything almost instantly.
I really love the idea to get a better intuition for what is going on by a game.
By level 30 I thought I understood how the Faraday rotator works in this game. In level 32 I feel like my solution should work, but it doesn't. It behaves completely different that I think it should. The help page don't help me at all.
I'd like to see some "debug" mode where I can freeze time and inspect the quanta.
Also I feel that the simulation sometimes "gives up" too early, and i can't see why something isn't working because it ends too early.
I, too, found that annoying.