At the core of the dispute is a bedrock of copyright law: that copyright is for humans, and humans alone. In legal/technical terms, "copyright inheres at the moment of fixation of a work of human creativity." Most people - even people who work with copyright every day - have not heard it put in those terms. Nevertheless, it is the foundation of international copyright law, and copyright in the USA.

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Here's what it means, in plain English:

a) When a human being,

b) does something creative; and

c) that creative act results in a physical record; then

d) a new copyright springs into existence.

For d) to happen, a), b) and c) all have to happen first. All three steps for copyright have been hotly contested over the years.

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Remember the "monkey selfie," in which a photographer argued that he was entitled to the copyright after a monkey pointed a camera at itself and pressed the shutter button? That image was *not* copyrightable, because the monkey was a monkey, not a human, and copyright is only for humans:

https://en.wikipedia.org/wiki/Monkey_selfie_copyright_dispute

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Then there's b), "doing something creative." Copyright only applies to *creative* work, not work itself. It doesn't matter how hard you labor over a piece of "IP" - if that work isn't creative, there's no copyright. For example, you can spend a fortune creating a phone directory, and you will get no copyright in the resulting work, meaning anyone can copy and sell it:

https://en.wikipedia.org/wiki/Feist_Publications,_Inc._v._Rural_Telephone_Service_Co.

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If you mix a *little* creative labor with the hard work, you can get a *little* copyright. A directory of "all the phone numbers for cool people" can get a "thin" copyright over the *arrangement* of facts, but such a copyright still leaves space for competitors to make many uses of that work without your permission:

https://pluralistic.net/2021/08/14/angels-and-demons/#owning-culture

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Finally, there's c): copyright is for *tangible* things, not intangibles. Part of the reason choreographers created a notation system for dance moves is that the moves themselves aren't copyrightable:

https://en.wikipedia.org/wiki/Dance_notation

The non-copyrightability of movement is (partly) why the noted sex-pest and millionaire grifter Bikram Choudhury was blocked from claiming copyright on ancient yoga poses (the other reason is that they are ancient!):

https://en.wikipedia.org/wiki/Copyright_claims_on_Bikram_Yoga

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Now, AI-generated works are certainly tangible (any work by an AI *must* involve magnetic traces on digital storage media). The *prompts* for an AI output can be creative and thus copyrightable (in the same way that notes to a writers' room or from an art-director are). But the *output* from the AI *cannot* be copyrighted, because it is not a work of human authorship.

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This has been the position of the US Copyright Office from the start, when AI prompters started sending in AI-generated works and seeking to register copyrights in them. Stephen Thaler, a computer scientist who had prompted an image generator to produce a bitmap, kept appealing the Copyright Office's decision, seemingly without regard to the plain facts of the case and the well-established limits of copyright.

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By attempting to appeal his case all the way to the Supreme Court, Thaler has done every human artist a huge boon: his weak, ill-conceived case was easy for the Supreme Court to reject, and in so doing, the court has cemented the non-copyrightability of AI works in America.

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You may have heard that "Hard cases make bad law." Sometimes, there are edge-cases where following the law would result in a bad outcome (think of a Fourth Amendment challenge to an illegal search that lets a murderer go free). In these cases, judges are tempted to interpret the law in ways that distort its principles, and in so doing, create a bad precedent (the evidence from a bad search is permitted, and so cops stop bothering to get a warrant before searching people).

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This is one of the rare instances in which a bad case made *good* law. Thaler's case wasn't even close - it was an absolute loser from the jump. Normally, plaintiffs give up after being shot down by an agency like the Copyright Office or by a lower court. But not Thaler - he stuck with it all the way to the highest court in the land, bringing clarity to an issue that might have otherwise remained blurry and ill-defined for years.

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This is *wonderful* news for creative workers. It means that our bosses must pay humans to do work if they want to be granted copyright on the things they want to sell. The more that humans are involved in the creation of a work, the stronger the copyright on that work becomes - which means that the *less* a human contributes to a creative work, the harder it will be to prevent others from simply taking it and selling it or giving it away.

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