No it’s not. Number one: Assuming that we are on a path to increased technology and discovery, eventually our disposable income will become gargantuan. This will be used to reach out, and even a small percentage will be enormous 10k years from now.
Number two: AI. Artificial intelligence will propel our interstellar discovery, and it will be self-sustaining. In other words, we won’t design craft, AI will design itself. And when AI craft arrive at a new system, it will begin replicating with available materials new starships. ALL OF WHICH will multiply upon reaching the next system. These new craft will be better than the last because AI in the future will be learning as it expands. It’s easy to imagine our own AI created craft returning in a million years and finally proving that there is intelligent life “out there,” us.
Skynet. Or even worse, Cylons!!