Tue, 09/05/2023 - 11:18 Tech Insider Rio Vista, California is a rural area, but billionaires want to utilize the land to erect a new city.AP Photo/Godofredo A. Vásquez Tags Tech Insider, Real Estate, California, california-forever, silicon-valley, bay-area, flannery, jan-sramek, san-fransico, Sacramento Source Silicon Valley billionaires want to build a new city in rural California, but l…