So there is talk that after billions of years, the sun will die and it will grow so large it will grow into the Earth.

So let's say humans live that long, and they build subterranean tunnels. Would that event of the Sun destroy Earth? If it doesn't destroy Earth, could humans survive such an event by living in subterranean tunnels?

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Elessar · 26-30, M

I'm not even sure we'll survive the current century, let alone billions of years lol