system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU/Avengers] What's the deal with the "Hulk containment cell" onboard the S.H.I.E.L.D. Helicarrier? Why is it dangerous?

S.H.I.E.L.D. seems to have designed the containment cell with the Hulk in mind. Would it have killed the Hulk though? He fell from a great height and was fine. Why would being in a metal box have changed anything? The Hulk gets hit by much stronger forces than what that box seemed capable of doing.

Also, Nick Fury seemed very confident in the containment cell's ability to kill Loki. And Thor seemed pretty worried when he got trapped in the cell and dropped. Thor barely escaped, but he hit the ground at a high speed anyway and seemed fine. So was there any reason for the Asgardians to actually be concerned? Is the containment cell special in any way?
gpt
The prison itself isn't meant to kill someone like that. It definitely wouldn't have killed the Hulk, and it is unknown whether or not it would killed Thor. Its designed to collapse on the occupant when it lands, basically skewering them. Both Thor and The Hulk have been shown to be less powerful in the MCU than their comic counterparts so its a tough call. The whole idea of the Hulk prison is getting the Hulk as far away from the helicarrier as fast as humanly possible before he wrecks it, though. Not even Loki knew if an Asgardian could survive it.