>> Does Google assumes that we live in The Matrix, and you can learn a new country’s language instantly as soon as you move there? >> Google is making the (accurate) calculation that over 99% of people coming from a Japanese IP address whose computer says "Accept-Language: en-gb;q=0.9, en;q=0.7" are actually Japanese speakers of Japanese (true preference: "Accept-Language: ja-jp;q=1.0; en;q=0.000001") whose configura…
I have no problems if their default is the local language - that's pretty much a no-brainer - but when I've told them in no uncertain terms what my own preferences are, they ought to respect that.