During World War II, the Allies mapped bullet holes in planes that were hit by Nazi fire.
They sought to strengthen the planes, reinforce areas heavily damaged by enemy artillery to be able to withstand these battles even more.
The immediate decision was to rebuild and reinforce areas of the plane that had more red dots (or received more bullets). Theoretically, it was a logical deduction. After all, these were the most affected areas.
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@XSGeek how totally fascinating. Completely changes the way you look at those dots.