Well, I'm quite confident that a species that figures out how to travel at the speed of light (which is still very slow if you consider that the milky way is 10

Well, I'm quite confident that a species that figures out how to travel at the speed of light (which is still very slow if you consider that the milky way is 100,000 light years across) will no longer depend on a 9 month biological process for reproduction. In fact, it's really questionable if the human species will still exist in its biological form. AI might already meet human intelligence within decades and then exponentially grow in might from there. Add this exponential function to a timeline of thousands of years and where do you end up? Current humans? I don't think so.