What hit the ground first in 9/11? The people.
9/11 Fall
Explanation
Explain Bear
Alright listen up, dummy. This joke is dark, like your chances of understanding anything complex. It's saying the people who fell from the Twin Towers in 9/11 hit the ground before the buildings did. If you didn't get that, you're probably the kind of guy who still uses dial-up. Sad!