Notables:
Set a record number of trades in 1 second: Over 12,000.
Over 1.5 million trades by end of day. SPY - often the most active, rarely breaches 1 million/day.
Nasdaq quotes went radio silent for 2 hours, but traded just fine.
Many other stocks were affected right before and after it finally opened (AAPL, NFLX, INTU for example)
Describe to me a forest with -10 trees
Overbooking. A person who sold 110 trees when they had only 100 (or had 110 but 10 were destroyed before delivery) has a forest with -10 trees. Street-smart people without math skills will understand this immediately.
The more dangerous of those was obviously given a little more thought, and included attempting to do so while on approach over a large city. You know, in an attempt to kill hundreds or thousands of people.
Citations please? The odds of airplane parts dropping out of the sky after the explosion killing more people than those on-board is pretty close to zero. So thousands of people? Nope. Not going to happen. Timing a bomb to blow up an airplane so that its parts correctly drop in the current prevailing winds to inflict major damage ? That is rich. Think of all the bombs dropped in wars (like airplane parts, only with high explosives designed for death) that resulted in zero or few casualties. Bombs dropped by people trained to hit targets. Not by some guy who only has a window to look out of. You kill me.
One could argue that setting humanity back a few centuries and wiping out half the population would be good for the planet (and perhaps ultimately save the species). It's not an argument I'd be prepared to make, but it's one I'd take seriously, if someone else were to make it.
Which half?
I program, therefore I am.