I love factorio, and I think I've mastered all the gameplay concepts except circuits. I'm 500+ hours in and currently doing a SE run. I've spent a few /hours/ today trying to do this semi-basic task using circuits and I can't figure it out. I really really struggle with circuit logic and I think the...

This is now happening to me a lot as well. When playing in window mode, it's quite easy to accidentally click the close window X on the game and then there goes your gameplay since last save. Quite frustrating. A confirm dialog or possibly as an alternative - an automatic "game exit" save ...