The million dollar (perhaps literally) question is – could @kentonv have written this library quicker by himself without any AI help?
But what if you only need 2 kentonv's instead of 20 at the end? Do you assume we'll find enough new tasks that will occupy the other 18? I think that's the question.
And the author is implementing a fairly technical project in this case. How about routine LoB app development?
This is likely where all this will end up. I have doubts that AI will replace all engineers, but I have no doubt in my mind that we'll certainly need a lot less engineers.
A not so dissimilar thing happened in the sysadmin world (my career) when everything transitioned from ClickOps to the cloud & Infrastructure as Code. Infrastructure that needed 10 sysadmins to manage now only needed 1 or 2 infrastructure folks.
The role still exists, but the quantity needed is drastically reduced. The work that I do now by myself would have needed an entire team before AWS/Ansible/Terraform, etc.
But if the time it takes an engineer to build any one thing goes down, now there are a lot more things that are cost effective.
Consider niche use cases. Every company tends to have custom processes and workflows. Think about being an accountant at one company vs. another -- while a lot of the job is the same, there will always be parts that are significantly different. Those bespoke processes often involve manual labor because off-the-shelf accounting software cannot add custom features for every company.
But what if it could? What if an engineer working with AI could knock out customer-specific features 10x as fast as they could in the past. Now it actually makes sense to build those features, to improve the productivity of each company's accounting department.
It's hard to say if demand for engineers will go down or up. I'm not pretending to know for sure. But I can see a possibility that we actually have way more developers in coming years!
Why? Inevitably, I changed positions / jobs / platforms, and all that effort was lost / inapplicable, and I had to relearn to use the stock settings anyway.
Now, I understand that some companies have different setups, but it might just make more sense to change the company's accounting procedures (if possible) to conform to most accounting software defaults, rather than invest heavily in modifying the setup, unless you're a huge conglomerate and can keep people on staff. Why? Because someone, somewhere will have to maintain those changes. Sure, you can then hire someone else to update those changes - but guess what? Most likely, unless they open-source their changes, no LLM will have seen those changes, and even if they are allowed to fine-tune on it, they'll have seen exactly ONE instance of these changes. Odds they'll get everything right, AND the person using the LLM will recognize when it doesn't go right? Oh right, they invested in hundreds of unit tests to ensure everything works as expected even with changes, and I'm the tooth fairy..
I don't actually think this is going to take the form of LLMs implementing custom patches to off-the-shelf software. I think instead it's going to look like LLMs writing code that uses APIs offered by off-the-shelf software to script specific workflows.