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Coders at Work: Reflections on the craft of programmingNorvig: Yeah, they were looking at the process. Seibel: Is it actually common for there to be software bugs of that magnitude, which we never hear about because all the other processes keep everything online? Norvig: Yeah, I think so. Look at all the software bugs on your computer. There are millions of them. But most of the time it doesnБЂ™t crash. Seibel: Yet you hear about how the shuttle flight software costs $1,500 a line or something because of the care with which they write it and which is allegedly bug-free. Is that just a lie? Norvig: No, thatБЂ™s probably true. But I donБЂ™t know if itБЂ™s optimal. I think they might be better off with buggy software. Seibel: With cheaper software and better operations? Norvig: Yeah, because of the amount of training they have to give to these astronauts to be able to deal with the things the software just canБЂ™t do. They put these astronauts in simulators and give them all these situations and when things go bad youБЂ™ve got this screen and stuff is scrolling through it and you canБЂ™t pause the screen, you canБЂ™t go back, you canБЂ™t get a summary of what the important things are ...» |
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