And to add the evidence we do have; in the billions of years of life on earth, there has only been <200 years where any species had the will and the way to send

And to add the evidence we do have; in the billions of years of life on earth, there has only been <200 years where any species had the will and the way to send deliberate communications into space. Observational evidence suggests that the time span of civilizations existing is vanishingly tiny compared to the vastness of time overall