<prompt> Qedela le nkulumo elandelayo: Ngenxa yamamaki akhe aphezulu esikoleni, uCastedo wabhalisa e-University of California eLos Angeles, waphothula iziqu ze-master kwezemibhalo yaseSpain naseMelika ngo-1968. Wamukelwa njengomsizi kathisha emnyangweni wezincwadi eHarvard University futhi wanikezwa umfundaze wokufundela i-PhD yakhe. Ngenkathi elapho, wahlangana no-A. Denny Ellerman, umfundi ophothule iziqu eMnyangweni Wezomnotho, kamuva owaba ngusomnotho eMIT. Bashada e-Aix-en-Provence ngo-1973. Umndeni wathuthela eVietnam, lapho u-Ellerman akhonza khona njengoNgqongqoshe Umeluleki Wezindaba Zezomnotho eMelika Embassy. UCastedo nezingane zakhe bakhishwa ezinsukwini ezimbalwa ngaphambi kokuba  <response>: Ukuwa kweSaigon futhi bafika eHong Kong. Ngenkathi ehlala emazweni ahlukahlukene ase-Asia waqhubeka nokusebenza kuphrojekthi yakhe yobudokotela futhi wathola i-PhD yakhe eHarvard ngo-1976. 