(Bloomberg) In a residential area in southeastern Seoul is a red-brick, four-story building that looks like any other in the neighborhood. But a basement office there is home to the research center whose extraordinary claims about a breakthrough in superconductor technology have shocked the scientific community and captivated the world.Most Read from BloombergTrump Cites Self Incrimination Concern in Lawsuit Against CohenElon Musk Says Treasury Bills Are ‘No-Brainer’QQQ Churns in Late Hours o