In the past 20 years there have been enormous gains in tooling and culture, besides the rise of LLM-assisted coding, which make this task easier now. The task was already easier five years ago than twenty. Don't get me wrong, LLMs can speed this process up, and help experts and diligent newbies alike produce software faster, but you are discounting the gains in other parts of our work.

Since 2006, knowledge has become more available on the Internet. There is StackOverflow (for) now, and any number of developer blogs, in addition to the voluminous books published on programming. Hardware setups became more homogenous and the kernel took over handling more of graphics. Compilers, static analyzers, debuggers and testing tooling are all leagues better now. More code is published online, which can be used as learning material. Developers as a class of people have grown in numbers and experience. More mistakes in various open source software projects have been made, and recorded publicly for others to learn from.