How does the AI "know" which Zergling is going to be fired upon? Are the tank shots not instant-hit? Or is this just a demonstration of what actual optimal control would look like.

The tanks aren't given overriding manual commands, so it likely could just predict how their automatic targeting works. If a player would give commands, it could get at least some information from the animation frames before the target is aquired and the shot fired.

(The implementation in the video likely just cheats and gets the information from the engine, but at least the first case should be deterministic enough)

A nice illustration of the potential battlefield of tomorrow.

Privat third in first row you ve been ai selected to draw splash damage for king and cuntry. Everybody else give him some privacy

That sounds not unlike some of the battlefield reasoning Morgan puts in the post-cyberpunk Takeshi Kovacs series.

Winning against AI in a sufficiently complex game looks very different than winning against a human.

"cuntry"... the irony...

I enjoyed this, thanks for sharing. Pretty cool.