Ilya Sutskever’s new company operates as secretly as it can out of offices in Silicon Valley and Tel Aviv. Photo: jack guez/AFP/Getty ImagesSilicon Valley’s hottest investment isn’t a new app or hardware product. It’s one man.AI researcher Ilya Sutskever is the primary reason venture capitalists are putting some $2 billion into his secretive company Safe Superintelligence, according to people familiar with the matter. The new funding round values SSI at $30 billion, making it one of the most val...