On the plus side
As with the ridiculous pursuit of IP / royalties / frivolous copyright and such in other areas, if this did actually happen and programming languages became encumbered with this nonsense, the offshoot would eventually be a community created language specifically created to be free, and without encumbrance. Given that such a language would be conceived in modern times, it may well have plenty of nice features that everyone wishes the older languages had... unless ofcourse they'd already all been patented.
Anyone making future languages for future Quantum computing, please bare all this crap in mind.
Biting the hand that feeds IT
