Are the videos of pilots experiencing hypoxia similar..

[Walilamdzi]

to what would be experienced with exit bag / rebreather?

 

[Living sucks]

I suspect you got no replies because it was extensively discussed in the rebreather thread.

 

[Aap]

Rebreather is a meh in practice. In theory, yet.

exit bag is much closer to a plane depressurizing in that unconsciousness happens in a few seconds. Said another way, if you walked into a room or 100% nitrogen, you would take a breath, maybe another, and then realize something is off as you fall to the floor unconscious.