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by pjc50 748 days ago
> Because after the war started, Internet access maybe a difficult privilege.

? The war is on and people are continuing to use the internet.

> Is it physically possible to detect imminent attack based on soundwave/light signals?

You cannot hear a hypersonic missile coming. Horizons prevent you seeing it. You need to listen to the AWACS https://www.cbc.ca/news/world/flying-with-nato-awacs-1.66194...