The whole point was to find a way to practice nuclear war without destroying ourselves. To get the computers to learn from mistakes we couldn't afford to make.
11 seconds sound clip from the WarGames (1983) movie soundboard.
You can hear this line at 01:22:27 in the Blu-ray version of the movie.
Quote context
[...]
- And when we go, nature will start again with the bees probably.
- Nature knows when to give up.
- If Joshua tricks them into launching an attack, it'll be your fault.
- Except that I never could get Joshua to learn the most important lesson.
- Futility. That there's a time when you should just give up.
- What kind of lesson is that?
- Did you ever play tic-tac-toe?
- No. Why?
- Because it's a boring game. It's always a tie.
- Exactly. There's no way to win. The game itself is pointless.
[...]