I was very pessimistic about AI taking jobs. Then a vibe coder joined my team.

I saw a lot of posts in this community worrying that AI (especially vibe coding) is going to take over a lot of jobs, and I used to have this feeling as well. However, here is something that happened recently that changed my mind. I had a person working in my team, and we were training a model in colab. He just wanted to do the training part himself (probably for linkedin). When I asked how the process was going, his reply: everything is good. One week later, I noticed that he just vibe coded everything. When I asked him what NMS is in his code (wanted to give him a heads up), he said wait a second I will ask AI. I began to feel something was wrong. He said that he trained the model with 95% accuracy, and it ended up with false positives everywhere. Although he could not provide the loss curve, he said that it was caused by too little labeled data, and we believed it (Foreshadowing here). Later when we tried to switch to binary classification so we don't have to deal with labeling, he said that he would do it. As you can guess, he could not provide anything one week later and what he was trying to do was still YOLO. In the end, I decided to settle both old and new scores at once. I talked with him directly and he didn't even know what an epoch is or what a confusion matrix is. Surprisingly, he didn't even know that he needed to save the pt file in colab, and he was continuing chatting with Cursor trying to let Cursor download the pt file (funny thing, it didn't even connect to colab, and he just gave the name of the colab file). I am actually a person who is very willing to explain things to others and it makes me feel good. However, he didn't even ask for help, and he just repeated "everything is good", and he wasted the whole team so much time. What I am trying to say is that AI won't replace people who know what they're doing, it is a very nice trap that captures all companies who do not care about fundamentals, the 0.01% LLM error will add up, and vibe coders will eventually drown in the debt they can't even see. Edit: We all make mistakes. Please avoid personal attack under this post.