Flatness problem
... that cosmologists C. B. Collins and Stephen Hawking proposed an infinite number of universes to explain the Flatness problem in the curvature of spacetime ?
... that <a class="mw-redirect" href="./Cosmologist" id="mwDiU" rel="mw:WikiLink" title="Cosmologist">cosmologists</a> <a href="./C._B._Collins" id="mwDiY" rel="mw:WikiLink" title="C. B. Collins">C. B. Collins</a> and <a href="./Stephen_Hawking" id="mwDic" rel="mw:WikiLink" title="Stephen Hawking">Stephen Hawking</a> proposed an <a class="mw-redirect" href="./Multiple_universes" id="mwDig" rel="mw:WikiLink" title="Multiple universes">infinite number of universes</a> to explain the <b id="mwDik"><a href="./Flatness_problem" id="mwDio" rel="mw:WikiLink" title="Flatness problem">Flatness problem</a></b> in the <a class="mw-redirect" href="./Curvature_of_spacetime" id="mwDis" rel="mw:WikiLink" title="Curvature of spacetime">curvature of spacetime</a> <i id="mwDiw">(three possibilities pictured)</i>?