It's neither of those, as far as I know.
It's so in the event of an evacuation, your eyes will be roughly adjusted to the outside light conditions. Source: I'm an Army aviator, know several heavy pilots.
It's so in the event of an evacuation, your eyes will be roughly adjusted to the outside light conditions. Source: I'm an Army aviator, know several heavy pilots.
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Nothing to do with windows.
But it makes sense that they’d lie about it just to make people pay attention.