If there's anything we've learned from the Engineering Blogs, they don't make major changes like this unless they have some kind of data that supports it. I su

If there's anything we've learned from the Engineering Blogs, they don't make major changes like this unless they have some kind of data that supports it. I suspect we haven't even seen half of the things that will make this paradigm work, and I'd bet they have extensive Usability tests to back all of it up.