So it beat your optimistic prediction by almost 10%

Well deserved Naughty Dog, well deserved.

Pretty good, but don't think you should read too much into it.

Do we have other first week sell-through numbers we can compare to? I'd like to see this in perspective, but it'd be difficult to get a 1:1 comparison.

Almost 2 weeks already, and I'm only on chapter 12. Definitely the longest Uncharted game for me, there's just so much to see.

Isn't Worldwide because Knack sold more First week on Japan than Uncharted 4.

Worldwide would mean every region combined. It wouldn't have to be #1 in every single country individually. Something else likely outside worldwide week one. 

Sony plays the PR game like everybody else. 

Pretty impressive. I'm really glad the series is selling pretty well. Now let's see if it reaches 8 million units lifetime, maybe 10.

With sales like that (week one) who the hell needs legs lol.   It will be the top selling exclusive this gen so far and that has to count for something.  :)

You're trying too hard.