Future makers shaping what comes next. From AI, spatial computing and quantum thinking to digital economies, human potential, leadership and innovation, global and African visionaries are taking the stage at Singularity South Africa Summit 2026. #SUSASummit2026 #futureproofAfrica #ExponentialAfrica themarkjackson daewhakang kylehermans tilly.lockey raoulgmi cathyhackl benjrosm brandonbirchak women_in_ai