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Colonizing space might be about a future beyond Earth, but it may also save Earth or doom it. So it's Turkey Day here on SFIA, and since Thanksgiving is always on a Thursday,

and so are episodes, I tend not to do Thanksgiving holiday specials like I sometimes do with

other holidays.

Thanksgiving is one of my favorites, partially because it's an excuse to stuff yourself

to the gills with food and friends and family, but also because it encourages folks to

survey their life and think about their good fortunes rather than challenges and hardships.

And as any channel regular can probably guess, I'm a glass half full sort of person, so

we had the topic come up on one of our episode polls of how space colonization can save Earth.

When I saw the topic idea, I thought what do we mean by Save Earth?

A lot of times saving Earth and saving humanity are synonymous, other times they are unrelated

or the exact opposite thing, saving one at the expense of the other.

And I thought that's a good group of topics as a chance to look at not just current or potential

threats we might need saving from,

but to review how technology has often helped us with seemingly inevitable cataclysms or problems.

However, I feel like we have to also look equally at the argument that technology, and

...