[don-code]

This strategy was actually used during World War II, to ensure pilots could come home safely. Weather forecasting not being what it is today, meteorologists determined what conditions would result in the _most_ lives being lost, then together with mission commanders "designed" missions to simply not meet those conditions.

Source: https://medium.com/butwhatfor/suppose-i-wanted-to-kill-a-lot...

[setr]

The missile knows where it is because it knows where it is not…

https://youtu.be/bZe5J8SVCYQ?si=QrIlpJ6BuJADd_zF

[MobiusHorizons]

Obviously this is a total aside, but can anyone explain what’s going on with that? Is it just explaining terrain mapping in an intentionally obtuse way, or is it some kind of parody? It’s really frustrated me because lots of people like to trot it out like a meme in the same way it was here.

[Bairfhionn]

It's a joke (meme, copypasta) but it's also accurate.

As I understood: Missile uses gyros and accelerometers to figure out how far it flew already towards the target. This is not 100% accurate.

So it additionally uses terrain mapping to figure out how it looks down there. Compare ground (am I flying above a slope?) to its internal maps and it can figure out where it is and adjust path if off course.

So it figured out the position by knowing that the position is most likely not the position where it's supposed to be.

[chrisandchris]

> Is it just explaining terrain mapping in an intentionally obtuse way

AFAIK, yes, that's what it actually was (or the basic sentiment actually came from). It was some part of training video in the US army/navy (don't know exactly), but the actual story or origin remains a bit unclear. At least my search within the web did not yield any (assumingly) valid source. I think at some point it just got to "it is what it is now" because it is a very, very complicated way to explain this stuff.