Twitter architect leaves job, country

Given Twitter’s erratic performance, it’s little surprise that the company’s chief architect, Blaine Cook, is leaving. I focused on the immigration section of his note:

I am moving to the UK so that my partner can pursue her career. We’re Canadian and her visa makes it impossible for her to work in the US, and at the same time there are rich web communities emerging outside of the Bay Area.

With each case like that, the chances rise that coming Web sensations will spring outside the U.S. That’s no tragedy. Silly public policy though. We have immigration rules more focused on protecting jobs, which is near impossible, than creating them, which is vital.

Before it's here, it's on the Bloomberg Terminal.