5
The Bet On Juniors Just Got Better
(tidyfirst.substack.com)
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this post was submitted on 12 Dec 2025
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Programming
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This really sums up Beck's argument, that now is the perfect time to invest in junior developers, because AI allows them to learn and skill up faster:
This is only really true if there will never be a need to really learn the code base — which maybe will be true for most devs, it’s hard to tell. But if not it could leave the majority of juniors with a much shallower understanding of the way things work under the hood.
I think the shallowness of understanding also stems from the codebase itself, and moreso that than the Ai finding where something is.
A poorly organized codebase, dynamic file imports lsp's can't follow, lack of annotations on unclearly-named arguments, etc. are way worse for understanding a codebase than Ai saying "the thing you need is this method", which Ai could also explain how it got there at least. At that point, Ai is a better than what they would have without it.
Write clean, understandable code. Document it, too. Everyone will thank you