(Photo byScott Rodgerson onUnsplash) Last time I promised more thoughts on the cost of AI going to zero. Consider this your four-act play on the subject. I actually outlined most of this material months ago, but parked it because I kept running out of space in the newsletter. Then DeepSeek made the topic timely again by releasing its "R1" AI model as a free, open-source download. That explains the first three acts. The fourth act was inspired by a sharp-eyed subscriber. They saw my note about...