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Patent systems and market protection by monopolys. If there ever was something to hold humanity back..

Just look at the positiv effects, a not enforced patent system had in china. We miss out on that for what exactly? So that some elephant can walk down the same path every day, knowing the seeds of growth are hidden away beneath layers of trampled mud?

There should be a unused patents become public property within a fortnight clause.

The article doesn't mention patents. This is entirely about allocating spectrum. And nothing went entirely unused. There is always more demand than there are suitable frequencies.
Exactly, it was solved by using small cells to share the spectrum geographically and with higher frequencies that had the double benefit of permitting more channels inside a band and smaller equipments. Using frequencies higher than 100 MHz meant costly hardware in the sixties/seventies.

And short antenna on a portable device were frankly ineffective at 100 MHz, they had to be long: A quarter wavelength at 100 MHz is around 80cm/2.3feets long!

Yep, i stand corrected.