> While current biological systems are indeed low-power, that very efficiency might be what makes them perfect for long-haul space missions. Imagine hybrid systems where bio-engineered organisms maintain spacecraft over generations, working alongside traditional tech. Maybe slow and steady wins the interstellar race.

Perhaps, but unlikely.

As far as we know (but we could be wrong), interstellar civilization is the business of a Type II civilization on the Kardashev scale. They can extract fusion energy, raw materials, and information from multiple solar systems.