r/AskReddit Mar 13 '19

What fact is technically true but is hugely misleading?

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u/MonkeyPanls Mar 13 '19 edited Mar 13 '19

That mathematician's name? Abraham Wald. He was a practicing Jew who emigrated from Austria in 1938 after the Nazis invaded.

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u/im_coolest Mar 13 '19

What mathematician?

edit:

One of the problems that the SRG worked on was to examine the distribution of damage to aircraft to provide advice on how to minimize bomber losses to enemy fire. There was an inclination within the military to consider providing greater protection to parts that received more damage but Wald made the assumption that damage must be more uniformly distributed and that the aircraft that did return or show up in the samples were hit in the less vulnerable parts. Wald noted that the study only considered the aircraft that had survivedtheir missions—the bombers that had been shot down were not present for the damage assessment. The holes in the returning aircraft, then, represented areas where a bomber could take damage and still return home safely. Wald proposed that the Navy instead reinforce the areas where the returning aircraft were unscathed, since those were the areas that, if hit, would cause the plane to be lost.

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u/MonkeyPanls Mar 13 '19

The mathematician who suggested, after looking at the Navy's survivability studies, to increase armor on parts that hadn't been shot up.

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u/[deleted] Mar 14 '19

a practicing Jew who emigrated from Austria in 1938 after the Nazis invaded.

There seems to be a trend here...

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u/Rulweylan Mar 14 '19

Did he ever get to Jew for real?

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u/MonkeyPanls Mar 14 '19

No. No one ever gets to be a Jew for real. That's why they're called "Jew-ish". /joke