Yeah, and somebody who is that smart can probably pack their data structures efficiently and find an approximation to do the job on a macbook pro that people with too many resources need a 1000 machine cluster to do. And get the coding and the computation done in the time that the C++ compiler is still chewing on the headers of the bloated library. (At times I’ve been that guy.)

But seriously, there is such a thing as industrialization. Google is notorious though for hiring 180 IQ people and getting them to perform at a 35 IQ level because there the documentation makes no sense, a procedure which should be done in one step really takes 300, fighting with C++, etc. They can afford to do it because it is just so profitable to help that guy who shows up on every. single. video. roll. who says “you can’t lose weight by exercising”, “you can’t lose weight by cutting carbs” who links to some video that drones on hours and hours and signs you up for some subscription you can never cancel to sell scam supplements.

Shame on them.

BTW, with high-complexity software there is enough question that you got it working right that you expect a significant process of testing that it works for your application. For instance if you got a hydrocode for simulating the explosion of a nuclear weapon you would not take for granted that you had built it properly and were using it properly until you'd done a lot of validation work. A system like that isn't a product unless it comes with that validation suite. The same is true for automated trading software (gonna hook it up straight to the market without validation? hope you have $100M to burn!)

... now there was that time a really famous CS professor e-mailed me a short C program that was said to do something remarkable that crashed before it even got into main() which did teach me a thing about C but that's not what a professional programmer does.