Absolutely. That was my first intuition as well. But then I got to wondering if our bodies aren't critically entangled with our Earth ecologies in various time

Absolutely. That was my first intuition as well. But then I got to wondering if our bodies aren't critically entangled with our Earth ecologies in various time sensitive ways, and realized that I don't know the answer to this question. (I.e. https://arxiv.org/abs/quant-ph/0004105 https://arxiv.org/abs/quant-ph/0004105 ) So my second question is treating the human body as being meaningfuly physically entangled with it's environment and as being in some sense unified with it. Accelerating a body away from Earth at 1g might be akin to cutting off a limb and expecting it to survive on its own. I don't know if this is the case, but it seems possible.