[I literally had this thought in the shower this morning so please don’t gatekeep me lol.]
If AI was something everyone wanted or needed, it wouldn’t be constantly shoved your face by every product. People would just use it.
Imagine if printers were new and every piece of software was like “Hey, I can put this on paper for you” every time you typed a word. That would be insane. Printing is a need, and when you need to print, you just print.
Sizes are different. Before “AI” went mainstream, those in machine learning were very excited about word2vec and reinforcement learning for example. And it was known that there will be improvement with larger size neural networks but I’m not sure if anyone knew for certain how well chatgpt would have worked. Given the costs of training and inference for LLMs, I doubt you can see nerds doing it. Also, previously you didn’t have big tech firms. Not the current behemoths anyway.