i'm not into scuba tanks, honey. i'm just going to take this and go way down. now, can you go that deep? what happens you're that deep, gang? you get a lot of water pressure pushing in on you. and what's that water pressure pushing in your lungs. and what's that water pressure going to do to the volume of your lungs, scrunch them up, right? okay. so the pressure is gonna be more in there, right? now you've got more pressure in your lungs than up there. which way is the air gonna go? someone will go-- you can't go-- --get to a point down about this--this far. i get to about here. i could go this deep. and when i was that deep down here, that deep, i go... i could just just barely breathe, any deeper, augh. can't do it. so that's what that's all about. that's why you have to have pumps at the surface or you have to bring a scuba tank with you. and with that scuba tank, that's regulated so the deeper you go, the more pressure it feeds into your lungs. got a little regulator, and it keeps the pressure in your lungs the same as the pressure of the water outside with