system
Given the following post, respond as if you're commenting on Reddit:
human
[DC Comics] Where was Superman during 9/11?

Did 9/11 happen in the DC Comics Universe? If so, what was Superman doing during that time? Was he asleep? Was he off-world?

Superman could have flown to New York the moment the first impact happened in order to rescue survivors from the burning building. He would have seen the second plane coming from a mile away with his X-Ray supervision, caught it, and set it down safely in a nearby field, thus rescuing everyone on board while taking the terrorists into custody.

While Superman rescued civilians from the inferno, Aquaman and/or Mera could have sent a giant torrent of water from the Hudson to douse the flames, thus preventing the building from ever collapsing. The Flash would then go up and down the stairs at lightspeed, emptying the building of its remaining inhabitants in a matter of moments (similar to Quicksilver's moment in X-Men Apocalypse) as Superman flew over to stop the third plane from crashing into the Pentagon and to lend a hand to the passengers of United 93. At the end of the day, 9/11 would have only claimed the lives of the people in the first plane and its impact zone.

So where was Superman? We all know that with great power comes great responsibility. How could he stand by idly as humans suffered?

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gpt
The DC Universe operates on a sliding timescale, that roughly boils down to "Superman made his first public appearance about a decade ago, and that ushered in the modern age of heroism." This means that 9/11 happened before Superman was around.