With billions of planets capable of supporting intelligent life, why no visits to earth? This is "The Fermi Paradox." Any civilization, with modest rocket tech & immodest funds, could rapidly colonize the Milky Way...
Extraterrestrial life should be common. Discussing this with colleagues over lunch in 1950, physicist Enrico Fermi asked: "Where are they?" or "Where is everybody?" The paradox is between evidence for its likelihood, and lack of evidence for its existence
paradox that a high-fat, high–saturated fat diet is associated with diminished coronary artery disease progression in women with the metabolic syndrome, a condition that is epidemic in the United States. This paradox presents a challenge to differentiat