The author is wrong on innovation as well usability. One of his arguments is summarized as follows: > [Open source] did not reward innovation. The most succes

The author is wrong on innovation as well usability. One of his arguments is summarized as follows: > [Open source] did not reward innovation. The most successful products of open source are knockoffs of old ideas; Linux included. So what about Spark? What about Python numpy, pandas, and scikit-learn? Most people don't just use them because they are open source. They are innovative solutions to difficult problems.