

When has any global standard ever been elected. What process even exists to do so.
The whole idea that some other nation gaining power post ww2 being more democratic is just crap
The pre WW2 world was far from some democratic ideal. The US just took over from Europe’s fiscal control using exactly the same techniques. Just as the UK took over from Spain etc.
Is it shitty yes. But the idea that if any of these nations sat back. Some peaceful agreement between waring nations would have evolved. Is just fantasy. It is looking back with a modern mindset that simply did not exist in any power regime at the time.
Exactly. No matter the y dimension. Barcode data is only stored in x. Whereas QR uses x and y for data.
They also use the corner squares and a few specific dots to allow scanning from greater angles. Basically allowing the data to be read in 3d space. Even though only 2d is used to store that data.
This is why QR can work well with cameras. Whereas bar codes are designed for very short range laser reflection.
PS lots of info on QR online including open source programs to make your own.
The same goes for bar codes. But readers involve some very simple maker skills. Making simple barcode readers was a common school science project in the early 90s.