>>18224079you severely underestimate how long a million years is.
>galaxy diameter: 100kly>sun distance to the center: 27kly>distance to the farthest edge of the galaxy: ~75kly>assuming 10% c max speed ships (e.g. nuclear pulse propulsion)>assuming every new colony requires 5000 years to grow enough to send its own colony ships>assuming every colony only makes its own colony every 5000 years (extremely conservative estimate)>assuming the initial colony ship sent from earth departs with 10 colony modules and detaches 1 colony module every 7.5kly traveledthe math checks out. every single star in the entire milky way could be reached and colonized within 1 million years with 10% c top speed ships and extremely slow colony growth.
