Theory perspective: SCES '05 Vienna

Over the past decades, there has been research on strongly correlated electron materials that has consistently outperformed our wildest expectations, with new discoveries and radically new theoretical insights. SCES '05 reaffirmed this vitality. Highlight areas included parity violating superconductivity, a new, two-dimensional helium-3 'Kondo lattice' and the discovery of quantum critical ferro-electricity. I review these and many other developments, with an emphasis on open questions and prospects for the future