It's a nontrivial calculation valid for a class of forces (e.g. QCD) and apparently a serious simplification to a specific calculation that hadn't been completed before. But for what it's worth, I spent a good part of my physics career working in nucleon structure and have not run across the term "single minus amplitudes" in my memory. That doesn't necessarily mean much as there's a very broad space work like this takes place in and some of it gets extremely arcane and technical.
One way I gauge the significance of a theory paper are the measured quantities and physical processes it would contribute to. I see none discussed here which should tell you how deep into math it is. I personally would not have stopped to read it on my arxiv catch-up
I'd add part of the craft is enjoying those minutiae, sharing lessons, and stories with others. The number of people you can do that with is going to dwindle (and has been for a long time from the tech sphere's coopting of all of it). That's part that I mourn.
The better analogy is you're now a shop manager or even just QA. You don't need to touch, look at, or think about the production process past asking for something and seeing if the final result fits the bill.
You get something that looks like a cabinet because you asked for a cabinet. I don't consider that "woodworking craft", power tools or otherwise.
I'm pretty sure at least the better woodworking shop managers and QA people all have experience with woodworking and probably would also consider this their craft if asked.
If it looks like a cabinet, works as a cabinet and doesn’t fall apart, by all intents and purposes it’s a cabinet. 99% of people out there won’t care if it was a “craftsman” or a robot built it. Just like most people buy furniture at Ikea.
The difference is that the person who was a woodworker is no longer needed. Why can’t the customer just walk up to a kiosk and ask the machine to start building? The machine or another one specialized for QA can then assess if it fits all the technical requirements which the customer doesn’t necessarily understand. This is what most people here are worried about, eventually the professional human being will no longer be needed by businesses which can produce everything with neither customer nor business owner being in need of specialized knowledge which they previously needed to acquire by hiring professionals.
> All the things the author said will still exist and keep on existing.
Except the community of people who, for whatever reason, had to throw themselves into it and had critical mass to both distribute and benefit from the passion of it. This has already been eroded by the tech industry coopting programming in general and is only going to diminish.
The people who discovered something because they were forced to do some hard work and then ran with it are going to be steered away from that direction by many.
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