I'm guessing that if you just uploaded a few pages of handwritten text to ChatGPT and asked it to make a font of your handwriting it would do a passably decent job. That might be the way that this business model ends.
What is the purpose of ASCII diagramming today? Seems like graphics are supported by every document and communications medium that I use. Is it for including directly in code?
The core of Apple's success has always been to capture the cultural leaders. Artists, musicians, journalists, etc. have used Apple at much higher percentages than the general public.
Now that the iPhone made Apple much more of mainstream company, it's harder to do -- what does it mean to focus on cultural leaders when 90% of American teens have an iPhone? But in the 15 years since Steve Jobs' death they have still been doing a decent job of it.
Facebook built a poker bot called Pluribus that consistently beat professional poker players including some of the most famous ones. What techniques did they use?