
Originally Posted by
Till
Type 1 is Flash Gordon, Type 2 is Star Trek Federation of Planets. Type 1 has fully harnessed the power of its home planet, Type 2 has harnessed more than one star system. Type 3 is galactic and has harnessed a galaxy.
Also, we recently found tunnels at the edge of our star system that lead to the nearest star system, Proxima Centauri. There is a habitable super Earth there called Proxima Centauri b, and if it has life that system is older and life would have had a head start on our planet by several millions of years. We received a radio signal from there in 2019 but it's inconclusive if it's a technosignature. What I can deduce is it is inhabited by a civilization they are much more advanced than us of they haven't self-destructed. It's feasible for them to have travelled here using solar sails or von Neumann probes, the latter would be nearly impossible to detect. Unless they are us and travelled here to colonize by redirecting the asteroid to kill off the dinosaurs to make it safe then hybridized their animals with ours and with apes to adapt to Earth, could have happened. In any case, that's just speculative but it's a thought.