I think Chrome isolated processes fail the idealized criteria, though: > 1. Performance. [...] Unix-esque shared memory, though much faster, is far too difficu

I think Chrome isolated processes fail the idealized criteria, though: > 1. Performance. [...] Unix-esque shared memory, though much faster, is far too difficult to use reliably for untrusted components. > 2. Expressivity. [...] without descending into the horrors that RPC (Remote Procedure Call) tends to descend to. Author is asking for how can we do better / get this popular and used all over, not what's the current state of the art (when that SOTA is a notoriously large and complex program that your average programmer has never looked inside of).