Yes. I own the idea of “owning an idea”, and you’re infringing my imaginary intellectual property rights. You must pay the licensing fee, or be subject to legal consequences.

It is rooted in the concept of copyright: the right to copy. Centuries ago that was a much more tangible process of labor.

The Press Act and Statue of Anne from England are kind of where the concept originated.

No. But you can have government/societal protections for sharing an idea.

I personally think IP law should have a fairly limited duration, only long enough for the holder to establish first mover advantage as a reward for publicly sharing details. Initial ideas:

• copyright - revert to the original 14 year duration (in the US), and consider going lower (like 10 years); derivative works should be encouraged
• patents - 5-7 years from application, one time renewal if it takes longer to bring to market
• trademark - current rules are fine, they’re basically protecting against fraud

But none of this concerns ownership, but instead legal protections for sharing.