Why perfect intelligence cannot supply missing forces

Could complete knowledge of Allied actions guarantee victory in the war?

No: the hypothetical intelligence advantage cannot compensate once the available force is insufficient to match the opponent.

The scenario grants omnipresent intelligence using the sophons from The Three-Body Problem as its comparison. Knowing an opponent's actions still leaves the separate problem of having enough force to respond. Against the Allies, perfect information alone would therefore provide no guarantee of victory. The fictional technology defines the hypothetical information advantage, while the military point concerns the gap between knowledge and capacity. The later recollection of the screen adaptation is explicitly uncertain and does not establish additional facts about its fictional history.