If we record every action of the pilot of a plane, why wouldn’t we also record every action of the developers who wrote the autopilot software, or the fly-by-wire software?
As a developer, every final action is also recorded in the performance of their job. That's what Git is for, and that history lasts for quite a lot longer than 2 hours.
The original comment suggested recording every action from the cockpit and using it for analytical data. The final action isn’t the goal. The steps and discussion that got them to the final action is. Hence recording every step the pilot takes, and the equivalent would be also recording every discussion that the software developer made that influenced them to write the code the way they did.
Saying “the git commit is there, that should be good enough to know the result” is like saying “the pilot landed the plane, that should be good enough to know the result”. Why do we even need CVRs at all? The final action is right there, right?
So again, why record everything the pilot says but not everything the developer that wrote the autopilot says?
For a pilot that just flew a 12 hour flight with a malfunction that would be of obvious benefit.
For a developer that introduced a bug 8 months ago, maybe not so much. Even if you recorded every interaction the dev had over that time period nobody would be able to go through everything and get sensible information.
If ‘directly responsible for lives’ is the rationale for voice recording pilots in the course of their jobs, and not developers, since developers are not directly responsible, but indirectly responsible, can we also expand the list of professions to include always recording police, firemen, and all medical professionals all the time.
I suspect making sure that surgeons know that anything they say during the course of their job, can and will be held against them in a court of law, will not serve to improve the quality of the work they do.