Note the words "first public release". Not to knock Chrome's achievements in this area, but it's an inescapable fact that they did not have any previous archite

Note the words "first public release". Not to knock Chrome's achievements in this area, but it's an inescapable fact that they did not have any previous architecture to migrate from. Taking any nontrivial program that has had years to assume a single-process architecture, and updating it to work in a multiprocess manner, is hard. It takes time to do properly.