> What am I missing? I guess the incredibly long tail of JavaScript deployments. You could change the language today and it would take years for it to percolat

> What am I missing? I guess the incredibly long tail of JavaScript deployments. You could change the language today and it would take years for it to percolate down to all the deployments out there. By comparison a silicon change requires zero code changes and is entirely backwards compatible. Plus there's a pretty simple marketing argument: "buy our CPU, it makes commonly-encountered workloads faster", vs "buy our CPU, when everyone upgrades the platform they use it'll be faster"