As someone who has newly learned about DIR, you really should go to the DIR section of ScubaBoard and other areas and learn more about it. Your enthusiasm is commendable, and the enthusiasm of your friend is commendable, but both come with a risk. Many people have very strong anti-DIR feelings, and many people downright hate it, not for what it is in itself but by for the attitudes expressed by a minority of its adherents. Some people tend to get so psyched up about it that they they can't stop talking about how great it is and how wrong everyone else is for not being part of it. Such people tend to be prone to the kind of hyperbole that was present in your opening post. It really tends to tick some people off. Consequently, most seasoned DIR proponents prefer to keep a low profile and refrain from coming across as a zealot.