What are the implications for interstellar travel?
Interstellar travel is likely to be done in habitats very similar to what has been described here, and by people who have already been living in space for generations. The major difference is that instead of relying on the sun, they would have to take their power supply with them (probably in the form of antimatter). Most significantly, space habitats make any solar system a candidate for settlement, not just the ones with Earth-like planets (or indeed any planets at all).