Forget the monopoly part, the reference to IE6, all that stuff. Let's say we don't care about that. What happens when the Chrome rendering engine has a security

Forget the monopoly part, the reference to IE6, all that stuff. Let's say we don't care about that. What happens when the Chrome rendering engine has a security bug, a big one, a zero-day? That's the issue we had with OpenSSL, suddenly 90% of the Internet er vulnerable and there are no alternatives until Google fixes the bug. Given the complexity and feature set of a modern rendering engine I don't think it's to fare fetched. I like the entire Internet not being vulnerable all at once.