Where are the Aliens?
How can anyone have the intellectual ineptitude or audacity to ask such a question, as if all life revolves around humans with a technological prowess of only a few measly hundred years.
Consider the evolution of life - at some point it moves from biological lifeforms into the digital world of immortality. What signals would a lifeform living in the digital Metaverse use to communicate from universe to universe? This is a question we are not yet evolved enough to answer. It's likely a digital life form could easily transmit itself, its culture and its world to new places in space and time, and in clones of billions of world replicas.