U.S.WorldBusinessArtsLifestyleOpinionAudioGamesCookingWirecutterThe AthleticYou have a preview view of this article while we are checking your access. When we have confirmed access, the full article content will load.More than 200,000 people converged on the Leap tech conference in the desert outside Riyadh in March.Credit...Iman Al-Dabbagh for The New York TimesThe oil-rich kingdom is plowing money into glitzy events, computing power and artificial intelligence research, putting it in the middl...