If you think like #3 you're one of the engineers that should work on safety critical software. Recognizing that you may produce errors I think is akin to the Du

If you think like #3 you're one of the engineers that should work on safety critical software. Recognizing that you may produce errors I think is akin to the Dunning-Kruger effect. It shows me you know enough that you don't know enough, which is far preferable to people who don't know they don't know and thus think they're good.