Your argument in favor of unikernels assumes that we&#x27;re stuck with hardware virtualization as the lowest layer of the software stack. What if cloud providers offered secure containers on bare metal, under a shared OS kernel? That&#x27;s what Joyent provides. So yes, Joyent has a vested interest in calling out the problems with unikernels. But I think their primary motive is that they truly believe containers on bare metal are a superior solution.