Comments by "Mikko Rantalainen" (@MikkoRantalainen) on "What Actually Happened To Amelia Earhart?" video.

@harrybhalerao8315 Get-there-itis was strong in this story. If the plan was to use radio to locate the only landing option and there's any problem with your radios (such as never hearing any response to any voice communication) it's time to return instead of keep going.
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@UristMcKerman When did astronauts end up on ISS without ability get back to Earth? Redundancy doesn't guarantee original timeframes.
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@somethinglikethat2176 Sure, I think the NASA management was thinking that the shuttle has internal redundancy so much that you don't need a redundant shuttle (that is, another one for backup). NASA had a huge problem with internal communcations. At one point the engineering estimated that there was a one in thousand change for a catastrophic failure during a shuttle mission. And the management was thinking there was a one in million change for the same thing! If management was this far off from the reality (if these groups disagree on probablity, I'd assume engineering is closer to reality), it's not a surprise mistakes were made.
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@error.418 If I undertood the story correctly, they had only the radio system to locate the actual place to land. Dead reckoning and celestial navigation were just good enough to get into distance where radio should work for sure. Of course, that assumes that the antennas are intact and the radio is working, neither of which did they check after departure.
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@williamzame3708 Challenger disaster was NASA management misunderstanding about the amount of redundancy in the system. The design used redundant o-rings (there were two o-rings and the design was calculated to be safe even if one failed). However, the cold temperature caused common fault mode which meant that the probability of failure of single o-ring was no longer independent and redudancy was lost because another o-ring would fail simultaneously with high probability.
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10:25 The face you make for "Oh, that aged well..."
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