On the photos everyone looks busy, but I presume that the guys spent 30 years sitting in front of screens where nothing happen, except perhaps once every 3 months.

They had simulations, although I don’t know how often they were run. There was at least one incident where a simulation was accidentally fed into the system and people came uncomfortably close to retaliating.

It's a good thing the simulation learned that the only winning move is not to play.

“WE’RE NOT BEING ATTACKED!! IT’S A SIMULATION!!”