Are we in the 'Solitude Zone' of the universe?

Are we alone? It's one of the most basic questions of human existence. People have been trying to answer it for millennia in one form or another, but only recently have we gained the tools and knowledge to start tractably trying to estimate whether we are or not. Those efforts take the form of famous tools like the Fermi paradox and the Drake equation, but there's always room for a more nuanced understanding. A new paper published in Acta Astronautica from Antal Veres of the Hungarian Un...