system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why colonize the moon or Mars instead of inhospitable Earth locations?

There is more and more talk about colonizing the moon or Mars. I get it, it would be great to explore space. And maybe we need to be prepared for the worst-case scenario should our planet become completely inhospitable. But it seems to me that Earth would have to be really, really bad for Mars or the moon to be a better option. If we "colonized" the Sahara desert or the north pole, it would be way, way more comfortable than Mars. With the oxygen and all. And if we were to settle in places like that, it would be a very long time before we ran out of room.

So why seek to settle on another planet?
gpt
> So why seek to settle on another planet?

Because it's there. To explore space. To develop and refine the technology of off-Earth living. To give the human race a lifeboat.

Why colonize the Sahara or Antarctica? We aren't running out of room in more livable places.