An artificial womb successfully grew baby sheep – and humans could be next
theverge.com
theverge.com
Now we have an answer!
This was not a serious conversation, but the ethical dilemma of such an interesting and relatively doable home science experiment was interesting to explore in theory.
Science is truly opening up more and more opportunities to make a real mess of ethics and societies guardrails.
The alternative to pack enough food for 14 or 18 years for each unhabitant is to pack enough food for a travel of several generations and maybe more than 100 years, and make an human habitat for dozens or thousands of people, and this would be logistically much more complicated.
Collect all bodily waste and all unused food scraps. Compost it for plants, or feed it to creatures like tilapia. Nuclear power provides a source of light.