[JoshTriplett]

> Who needs nested virtualization when you have bare metal?

AWS's non-bare-metal systems can boot in ~10s with enough tuning.

Their bare-metal systems take tens of minutes to boot.

Nested virtualization would allow scaling up and starting new nodes much faster.

[p0rkbelly]

If you have a use case for spinning up nodes fast -- what is the use for nested virtualization? Sounds like that should be containers on any underlying single-virtualized layer?

[JoshTriplett]

Sometimes you want the safer isolation of virtualization, and you want to spin up individual workload elements in virtual machines.