Or at least an approach towards one. Some years ago I wondered how a television type ansible might work.  The basic idea is like a digitized plasma TV with Bose-Einstein-Condensate pixels alternating with ' color conductive ' ones. https://en.wikipedia.org/wiki/Bose–Einstein_condensate https://en.wikipedia.org/wiki/Quark–gluon_plasma A significant engineering challenge without fusion and full-spectrum quantum computers.