Is it? I had no idea it was still a thing. I associate it first and foremost with fiction. Specifically, Dr. Strangelove: the campy black comedy that's fifty-six (56) years old.
If pushed, I probably would have guessed it was a real thing from the Cold War. Let me be clear: I couldn't have said with certainty that the Doomsday Clock was a real thing.
I had no idea that it was maintained in 2020. It belongs in the era of Burt Ward in tights. "Time to Stop the 'Doomsday Clock' — Because No One Cares" might be a better title.