But yes, it is almost impossible that life doesn’t, or hasn’t, existed elsewhere in the multiverse. The Drake equation is a fantastic number cruncher for that. Complex, intelligent life? Likely, just a matter if they exist now or have gone extinct at this particular moment. Plugging in the Drake equation with a couple of unknown-but-probable figures guesstimates, a lot of physicists estimate 5,000 + life forms currently in our galaxy alone that are technically capable of broadcasting long distance communications. Fermi paradox comes to play here but doesn’t take into account: radio waves at speed of light would take a long, long time to receive and send across our galaxy, those signals would need to be precise locations to detect or target and our galaxy is unbelieveably vast. Pinpointing a signal toward a tiny planet’s direction for every candidate star system in the sky will take AI advancements and refinement in quantum computing and whatever advanced tech comes after that