What's sad is that processes are already virtual machines, they just need to have a better permissions system. What's really sad is that for the most part those better permissions systems have been built (namespaces/cgroups on linux, gatekeeper on Mac OS) but nobody figured out how to expose that to end users before the business people figured out that there were trillions of dollars available if you charged rent to centrally manage it.

We were so close. Sigh.