Neither Elon Musk Nor Anybody Else Will Ever Colonize Mars

In these latter days everybody is familiar with concepts like the carbon footprint, sustainability, and the like. Measures of the ecological cost of the things we do. One of the most irksome problems bedeviling Earth's biosphere at present is the outrageous cost of many aspects of many human lifestyles. Society is gradually and too late awakening to, for example, the reality that there is an inexcusable, untenable cost to shipping coffee beans all around the world from the relatively narrow belt in which they grow so that everybody can have a hot cup o' joe every morning. Or that the planet is being heated and poisoned by people's expectation of cheap steaks and year-round tomatoes and a new iPhone every year, and that as a consequence its water-cycle and weather systems are unraveling. Smearing the natural world flat and pouring toxic waste across it so that every American can drive a huge car from their too-large air-conditioned freestanding single-family home to every single other place they might choose to go turns out to be incompatible with the needs of basically all the other life we've ever detected in the observable universe. Whoops!

This article really lays into Elon at the end, which honestly, as I’m getting older, I feel okay with.

Also: one of my main values in life is balance, which is essentially the goal of sustainability. How can we balance our needs with the needs of our planet?

Like any parasite, our species needs to achieve some sort of symbiosis with our host. You can’t extract so much that you kill it, but you need to live at the same time, so how do you reach that balance?