Author: jasperai550@gmail.com

Every serious AI course publishes a prerequisites page, and read together they settle the ordering argument: application layer first, mechanism second, internals only if the job asks. Plus four things worth skipping.

A Census survey of 15 business functions says 18% of US firms use AI, and 52% of adopters use it in sales and marketing. Function by function, here is what actually got measured: a 16.3% sales lift in one chatbot experiment, a 14% support gain concentrated among novices, a software trial that broke, and 2,044 court cases where it went wrong.