Absolutely amazing stuff. I am now three scores and ten in my life time, seen a lot of changes from slide rules->very fast to calculators->very fast to pcs, from dot matrix printers to lazer jets and dozens of other things. Wish AI was available when I was doing my PhD. If you know its limitations it can be very useful. At present I occasionally use it to translate references from wikipedia articles to bibtex format. It is very good at this, I only need to fix a few minor errors, letting me focus to the core of what I am doing. But human nature always resists change, especially if it leads to the unknown. I must admit that I think AI will bring negative consequences as it will be misused by politicians and the military, they need to be "regulated" not the AI.