In the early days of computing, local storage and processing weren't actually a thing. Instead, your individual computer acted as a terminal, pulling data from a central processing server. Well, the French startup Blade likes it that way and has released a similar system but with a 21st-century twist. Its cloud-computing system, dubbed Shadow, can impart the performance of a $2,000 high-end gaming rig onto any internet-connected device with a screen. And now the company is bringing Shadow to California.