I think
what Poésy’s character meant is that “future people” could have a bomb detonate in the past by either inverted people doing that, or inverting a bomb itself. Not the actual events in Stalsk. But a backwards travelling bomb sounds paradoxical already so idk. I took this more as hypothesizing as to why this sort of war would be unwinnable.
The bomb above the algorithm pieces had a countdown so imo not the one Sator would have triggered via dead man’s switch. No need for a countdown if he was going to activate the algorithm by that detonation. Imo the algorithm activation was connected to the switch itself by some movie magic, and the above bomb was meant to bury the algorithm to be discovered by those in the future only. As to how it actually activates and does whatever it’s supposed to do, idk.
The bomb above the algorithm pieces had a countdown so imo not the one Sator would have triggered via dead man’s switch. No need for a countdown if he was going to activate the algorithm by that detonation. Imo the algorithm activation was connected to the switch itself by some movie magic, and the above bomb was meant to bury the algorithm to be discovered by those in the future only. As to how it actually activates and does whatever it’s supposed to do, idk.