I love hearing testimonials especially ones like this:
I told my boss about your Slow Burn method and loaned him the book. He’s been doing it for about 4 weeks now and LOVES it. He’s getting better results, and has more time to spend with his family rather than the guys at the gym. A buddy of his at the gym, though, has been ragging on him for not doing cardio on a regular basis. He (my boss) used to run, but got away from it and hasn’t done any cardio at all for months and months. Because of the guy’s nagging, he decided to try it again, figuring he’d be able to do only about a half block before having to stop. When he hit the 2-mile mark and still wasn’t winded, he KNEW you were right about not needing cardio and about how Slow Burn is all you need.
Of course, when you strength train properly you ARE doing cardio. There is more than one way to skin a cat - or to increase mitochondria.
You can't judge a book by it's cover, though we do all the time. When you see people doing Slow Burn it doesn't look like much. In fact, it looks downright useless. Though the mechanical work looks meager - and compared to how typical people strength train it is, the internal work or metabolic work is considerable.
If you're a Slow Burner or into strength training in some other way and don't do any traditional aerobics, the next time someone says "Don't you do any cardio?" you're answer can and should be "Yep. Sure do."