[cowmoo728]

depending on the failure type (shear, compression, tension) carbon fiber behaves differently. but when the fibers actually break it pops so quickly that it exceeds human perception.

real time view of tensile failure: https://youtu.be/gmMRPmEYWhU

high speed 10m fps view of tensile failure: https://youtu.be/OePpVwCvCZg

when compressed along an axis that's not properly reinforced by carbon fibers, it will just disintegrate: https://youtu.be/BaSXRoD2xaQ?t=61

another interesting example of rapid failure: https://youtu.be/DM6J-yw8yjA?t=226

[Sylamore]

The same guy that runs the channel as your last video actually did one on imploding objects under sea depth pressures: https://www.youtube.com/watch?v=WD7CfnQC5HQ

[userbinator]

Note that their pressure gauge only goes up to 4500psi. The water pressure at the Titanic's location is around 6000psi.