The GDP has absolutely nothing to do with how developed a country is.
Just double all prices (as Greece did) and you doubled your GPD - oops that was easy.
USA is a third world country, no working infrastructure, no working power grid, no working internet, poisoned tap water etc. p.p. No affordable health care.
Thailand has a low GDP, but is one of the top three rice exporters of the world. The health care system works just like in Germany, or any other first world country.
My internet is faster than my Wifi router, don't actually know how many Gbits it has, my router only has 80Mbit.
China has never claimed to surpass the US in technology.
every country has surpassed USA in technology. You can not even make the landing ropes on your carriers to catch landing plane your self. They are all made in: Germany.
The only thing where USA - perhaps is leading - is Intel. And that not on the technology edge but on market lead. All other CPU architectures are better: and mostly not manufactured in the USA, but in: China.