Programming is pure logic. It won’t work if there’s an inconsistency in the logic. The errors aren’t produced inside the system. They are produced from the outside. If the system doesn’t work, it’s definitely your fault.
The funny thing is that every programmer thinks his logic will work when they finish coding a program. It never does, but at that moment, everyone believes there’s no error in the logic they have written, and confidently hits the “Enter” key.
— Satoru Iwata in Hobo Mainichi with Shigesato Itoi and Shigeru Miyamoto