After 40 years in IT, I'm retired, and look to a not-yet-retired buddy for guidance, since he's also the best programmer, deepest solutions, I've ever met. He, of course, jumped all over LLMs, downloaded a couple, began playing with them, and was soon working with them. One, at GitHub, helps you program, and he can stop in the IDE and just ask for "routine to filter correct dates", even adding parameters to "correct", and get a routine in seconds that he just has to scan to check, since (like us all) he has written dozens of such routines. Saves 90% of programming time on things like that.
So it helps more with basic programming, skipping the dull stuff - the danger here is to the junior programmer you might have handed that off to? He agreed - junior programmers would be using the AI the most-heavily, though, being given much more of that work.
But then came my killer question: "Is this going to affect your data-processing, get-the-job-done life...more than the invention of the spreadsheet? Remember having to stop and do all the calcs, write them down? Spreadsheets REALLY sped up a dozen common office jobs, more common jobs than programming. Even most programmers have to sort and organize piles of data, do repetitive calcs, part of every process. Would you go back from spreadsheets, if you could keep the AI helper?"
NO WAY. Firm head-shake. Spreadsheets did MORE to speed up office work. At least for programmers. Absolutely for Accounting, pay, inventory, managing customers and sales.
So: all I'm saying, is that before you start predicting a Brave New World that's Very Different, consider that our society swallowed up the efficiencies created by spreadsheets, and databases, and word processors, and internet communication instead of mailing paper, and for that matter telephones and cars. Employment and life continue.
It's not bigger than spreadsheets. Calm down.