I'm Enamored With the Concept of Eternal Inflation Multiversal Cosmologies

As a non physicist, i find myself enamored with the concept of eternal inflation multiversal cosmologies. Intuitively in an infinitely expanding series of bubble universes, feels like as good a cosmology as any to get behind. I realize feeling like its a beautiful cosmology is not a sound basis upon which to base a scientific theory, however. And i'd like to know if you could expound on what testable hypotheses are being explored in this area, or have been proposed.