( full video 👆) What Happens If A Plane Crosses 40,000 Feet? (The Coffin Corner)

Added: 2026-05-25

[00:00:00]Imagine sitting inside a commercial airliner. Everything is dead quiet.

[00:00:05]Suddenly, the pilot decides to climb higher and higher than usual, breaking past 40,000 ft.

[00:00:15]You might think the flight would get smoother, faster, quieter, but the reality is a pilot's worst nightmare.

[00:00:24]Because as you rise, the sky turns into a trap.

[00:00:28]There is a specific threshold in the atmosphere where any further ascent becomes a gamble with death.

[00:00:35]The question is, if the sky is infinite, why are commercial planes locked into such a strict limited altitude?

[00:00:43]Why don't we see them flying much higher? The real reason is much more surprising than you expect.