I'm not though. That's the thing. In 900 years, as of today, weapons in real life have become even crazier and crazier. More advanced. Another 900 years into the future technology will be even more advanced. There's a law, I forgot who named it but I says some like every ten years technology doubles in its advancements. In that sense the advancements we made in next 900 year would actually be way faster than the previous 900 years. Math is crazy