One that is incredibly hostile to life as we know it. Dr McCoy was right: Space is disease and danger wrapped in darkness and silence.

Our current planet was made habitable by organisms infinitesimally less intelligent than humans. I think we're up to the challenge.

While absolutely true, it did take time, fraught with a whole lot of failure to bring us to this point where we feel the need to recognize a potential and probable impending failure (again).

Life may compete with the elements as it has for so long and so many times on Earth, or become completely obliterated as it may have been on a planet such as Mars.

Then again, without a long enough window of time for observance, we really have very little way to determine if life on Mars is already well on its way to a huge resurgence.

A lot of change happens in a little as 100,000 years...

> Our current planet was made habitable by organisms infinitesimally less intelligent than humans.

I'm a big Musk/Bezos fan too and share their dreams of colonizing the solar system but let's be fair, our amoeba ancestors had billions of years in which to adapt to the planet. Homo-sapiens have barely been around for 400 000 years and there's little evidence our current societal structures will be sustainable for a fraction of that time.

Those oeganisms didn’t have lawyers and safety experts to answer to. It’s not like A. Moeba was going to sue B. Moeba because C. Moeba a died in a chlorophyll-related incident.