Depends on if you work outside for a living or live near a coastline or a forested area. It won’t be like a Star Trek: The Original Series where everyone’s in a big room and a red glow starts pulsating and we all groan and crumple to the floor. No, it won’t be like that.

It’ll be like heat exhaustion exacerbated a hitherto unknown heart condition that deaded you. Or a Cat 6 hurricane rolled a tree over you. Or failing crops mean you couldn’t fight off COVID-26 or whatever.

No, we’re not going to all die at once, as such. Depending on your timeframe for “at once”.