Where is 'mid-air'?
Anywhere between the hard lumpy stuff, and where it runs out altogether.
If the two converge - that is known as "The other coffin corner"
As this cockpit duo no doubt expressed to each other afterwards:
Isn't it rich?
Are we a pair?
Me here at last on the ground,
You in mid-air.
Send in the clowns.
(Stephen Sondheim/Joni Mitchel et al..)