Whether or not someone qualifies as a computer nerd can be defined by the number of O'Reilley Media books owned. For those not in the know, O'Reilley Media publishes technology related non-fiction books. These books are written on information technology topics by experts in the field and these books are often considered the unequivocal resource on the topic covered.
Section 24.5 of Backup & Recovery, 1st Edition by W. Curtis Preston and published by O'Reilley Media in January of 2007 contains the following text:
If you're going to change the authoritative nameservers for your domain, you need to know the proper procedure to do it. If you don't follow these simple procedures when changing nameservers, and you aren't familiar with the way that DNS caching works, you will end up with unexpected results.