I don't mean to say that you can design technology without studying how users will use it, or thinking about how it will be manufactured. But I think there is a benefit to the engineers being under a different roof from the guys who are worried that user growth was only 4% this quarter or that the product isn't trending in the 18-25 demographic or that factory workers in China are demanding a raise.

Not that those guys aren't useful too, but they tend to create an environment that inhospitable to certain kinds of R&D.