There’s a nice analysis of the Fermi paradox out there somewhere that takes into account uncertainties in each of the parameters. As you multiply them together,

There’s a nice analysis of the Fermi paradox out there somewhere that takes into account uncertainties in each of the parameters. As you multiply them together, the uncertainties compound each other. The end result is a big old who knows, rather than a paradox. Our observations are compatible with a really wide variety of realities, many of which include lots of aliens and many of which don’t.