No one undercoats cars anymore.

What flavor dessert?

Living in caves? Bro thinks just because something is way too cost inefficient and bad idea overall that we shouldn’t keep designing safety features. There are better methods. Even fighter pilots can be career endingly injured after one ejection from the immense G forces applied to the body ejecting from a jet. There have been parachutes deigned into the bodies of small aircraft like Cessna’s that will safely float a plane to the ground in the event of a catastrophic failure. At least this train of thought has a more realistic application than 150 explosive charged ejection seats ripping off the roof of a 747…

“About to send people to mars” uhhh yea that’s not happening for a long time. We haven’t even been back to the moon since the 70’s. Just because the idea exists doesn’t make it worth investing in. The safety rate of planes makes the idea of 150+ ejection seats completely absurd. Do you realize how heavy these would be and you want them to have enough energy to stay in the air? Do you want to be able to afford airline flights? You’re missing very basic parts of why this would never take place.

You can just say you have no idea how and leave it at that. If you had any idea how heavy and cumbersome and dangerous ejection seats were you’d understand what an impractical idea it is on a commercial liner

Let’s see your design for 150 ejection seats per plane

flush a second time? Idk what else you could possibly do