What exactly do you mean by "fine", that you're so sure of? I hear the phrase a lot, "the planet will be fine". Sure it'll continue to be a ball of matter that

What exactly do you mean by "fine", that you're so sure of? I hear the phrase a lot, "the planet will be fine". Sure it'll continue to be a ball of matter that orbits the sun a few billion more times, so in that regard it'll do pretty fine as a planet. That's not what people are concerned about when they say they're worried about Earth though.