When working with FreeBSD jails a decade ago, I always thought they were enough to build my servers and needed just more polishing. Then hypervisors caught on a

When working with FreeBSD jails a decade ago, I always thought they were enough to build my servers and needed just more polishing. Then hypervisors caught on and it was the virtualization era. Now soft-virtualization is coming back and it's becoming popular to say "hypervisors are overhead". It's funny how we could have taken a different direction ten years ago but I think I understand. We needed to go through the "VMs will run any of your existing software, don't worry". With mass adoption, new software can start to be written to run inside soft-virtualization (with not that many modifications, if any). If only.. oh well.