That follows another presumption I'm not comfortable granting. That AI is possible. We don't understand intelligence. We don't. To presume we could recreate it

That follows another presumption I'm not comfortable granting. That AI is possible. We don't understand intelligence. We don't. To presume we could recreate it is, at this point, wishful thinking. And even giving you AI, they would have to decide that it's worth it. Let me just straight up ask, what's the practical use? We're interested in interstellar travel because it's a way for us to expand our species. A completely artificial life form with an effectively eternal lifespan has no such concern.