In that blog post he recommends reading several books simultaneously and abandoning boring books with no regret.
At any given time, I have 2 books, one fictional and one technical, open (made some progress in reading it, maybe not literally open ;) ). I probably could handle an extra technical one.
If I was reading only one book, some evenings I'd be like 'meh, don't feel like reading it tonight'. But when I'm reading simultaneously, I have no excuse to read a bit every single evening, which evolves into a habit and it is definitely a nice habit to have.
TL;DR as a software developer, I find my primary occupation is reading, and not just code. Secondary is typing. I should get a better keyboard.