From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail From: Simon Wright Newsgroups: comp.lang.ada Subject: Re: Intervention needed? Date: Thu, 28 Mar 2019 08:39:34 +0000 Organization: A noiseless patient Spider Message-ID: References: <6e1977a5-701e-4b4f-a937-a1b89d9127f0@googlegroups.com> <6f9ea847-2903-48c8-9afc-930201f2765a@googlegroups.com> <87a7hgvxnx.fsf@nightsong.com> <4e240c66-dce8-417f-9147-a53973681e29@googlegroups.com> <877ecjwjqo.fsf@nightsong.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: reader02.eternal-september.org; posting-host="03bab78f2bb4a2cfe8d196a5041d1957"; logging-data="17707"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18XxMn3kSuzddqeFWvGxgrygv8vpHqXJJg=" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (darwin) Cancel-Lock: sha1:VQoGVTR9mceJ4aFpCxcOYgyla1M= sha1:VnXn85C8wMGCPripUdtxfNkDock= Xref: reader01.eternal-september.org comp.lang.ada:55986 Date: 2019-03-28T08:39:34+00:00 List-Id: Paul Rubin writes: > Fwiw, there's a video on Youtube of Adacore founder Bob Dewar talking > about the flight software for the F-22 fighter plane, where he asks > whether that software should be considered safety-critical. The > audience laughs, but Dewar goes on to say that of course a passenger > plane's software is safety-critical, but the whole idea of a fighter > plane is to go up and get shot at, the controls let the pilot > deliberately run the engines above their power envelope, etc. IIRC he > said that the F-22 program managers didn't buy that argument and still > wanted the software to be treated as safety-critical. https://youtu.be/DnsLpEgFUSk I think. Only the slides, I think, but the voice is distinctive!