So, you're saying she isn't competent to write a book or give talks, despite the fact that she's written a book for a publisher with a very good reputation for

So, you're saying she isn't competent to write a book or give talks, despite the fact that she's written a book for a publisher with a very good reputation for high standards and has been hired by two top tier tech companies to work in the field. On what do you base your assertion that she is incompetent?