That tiny airplane-window hole is supposed to be there. ✈️ . . . A typical passenger window uses 3 panes, and the small opening sits in the middle one. At cruising altitudes near 35,000 feet, it gradually equalizes pressure so the outer pane bears the main load. The hole that looks like damage is part of what keeps the window working.
Source
Smithsonian Magazine, 2016, 'Why Is There a Tiny Hole in Airplane Windows?'
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