[eitally]

While the reasoning and output of ChatGPT is impressive (and, imho, would pass almost all coding interviews), I'm primarily impressed with the logical flow, explanation and thoroughness. The actual coding and problem solving isn't complex, and that gets to your question: someone (in this case, the OP), still needed to be able to figure out how to extract useful data and construct a stimulating prompt to trigger the LLM into answering in this way. As others have posted, none of the popular LLMs behave identically, either, so becoming an exert tool-user with one doesn't necessarily translate to the next.

I would suggest the fundamentals of computer science and software engineering are still critically important ... but the development of new code, and especially the translation or debugging of existing code is where LLMs will shine.

I currently work for an SAP-to-cloud consulting firm. One of the singlemost compelling use cases for LLMs in this area is to analyze custom code (running in a client's SAP environment), and refactor it to be compatible with current versions of SAP as a cloud SaaS. This is a specialized domain but the concept applies broadly: pick some crufty codebase from somewhere, run it through an LLM, and do a lot of mostly copying & pasting of simpler, modern code into your new codebase. LLMs take a lot of the drudgery out of this, but it still requires people who know what they're looking at, and could do it manually. Think of the LLM as giving you an efficiency superpower, not replacing you.