Life Form

Thinking about the relative sizes of life forms and their life spans, and how people are made of cells, and how some cells are physically attached (like skin and bones and organs, etc.) and some are not (like blood), and how we harbor any number of bacteria which are different than us, but with which we coexist, sometimes to our mutual benefit, sometimes not.

And then I was thinking about space travel and how building a spacecraft that can travel anywhere in a reasonable amount of time, like to another planet, never mind another star, is way beyond our capabilities at this point.

So perhaps we will eventually build a large space craft with it's own intelligence and a very long life span, and it will be inhabited by a captive group of humans with whom it will have a symbiotic relationship, and the humans will live their lives inside this craft, and the craft will become a new space born life form that can travel to other planets and maybe even stars.