Manifesto for higher Tc

A perspective by A.V.Chubukov, who is an enthusiast of spin-fluctuation type gluon. He compared the iron-based and the copper-based superconductors and surmise a higher Tc, observing
(1)Kexp/KLDA for existing high Tc SCs is around 0.5;
(2)superfluid density ~ dc conductivity x Tc.
Point (1) indicates that, high Tc is likely with a mixture of mobility and localization [Nature Physics, 7:272(2011)].