Whatever oumuamua was it's no rock. It slingshot maneuvered our sun and accelerated away against gravity. Science says that's bullshit without propulsion of some kind.

Read Rendezvous With Rama. It's basically the same introduction. Cylinder spinning so perfectly we could only detect rotation because of a slight imperfection in the external smooth hull. Gravity assist boost maneuver. Gravity defying acceleration.

If it was predictive programming, Ramans did everything on threes. I'm waiting for the next ship.