The author has written approximately the same article 3-4 times, with different dollar amounts in the title.
The only new info in here compared to previous posts was this:
> I didn’t write programming books from the start.
> I started with Singapore Math books which sold well.
> But I was then issued a cease and desist letter from
> a competing company.
which is ... pretty interesting. The Wikipedia page on Singapore Math[0] doesn't contain any obvious reason why someone could C&D a textbook written in that style. A post going into the details of that event might do well on HN.
The only new info in here compared to previous posts was this:
which is ... pretty interesting. The Wikipedia page on Singapore Math[0] doesn't contain any obvious reason why someone could C&D a textbook written in that style. A post going into the details of that event might do well on HN.[0] https://en.wikipedia.org/wiki/Singapore_math