Re: More to the point...
1, in theory but it's not as homogenous in language or culkture. A killer app gets mentioned on a US TV show and it has millions of users the next day. It's hard for something new in silicon roundabout to immeditately reach a million Norwegians.
2, Try opening a business in France or Italy compared with registering your silicon valley startup in Delaware, or moving an office from SF to Austin compared with switching from Berlin to Athens.
3, Who cares about the interstate? Nothing I'm making needs trucking anywhere.
4, The majority of American highschool kids are as thick as the majority of British GCSE-ers. But there are millions of them and some small percentage aren't thick. The country also attracts lots of smart foreigners - admittedly it then throws most of them out as soon as they finished their PhD on room temperature superconducting artificial intelligent nano-clusters - but some get to stay and build rockets.
ps American beer in the northwest is a lot better than the tetleys/watneys/scottish+newcastle that is served in most of the UK. Yes bud is crap - but so is Carling