A way to artificially slow network speeds for testing purposes.

"It’s easy to talk about Steve’s paranoia and how that forces him to keep the project small, but, in truth, the secrecy is more of a useful by-product of the way he manages new projects, rather than the central goal. Steve assembles and motivates a small team of young geniuses, then sets them to work for “90 hours a week and loving it.” The results are highly-integrated designs that far outpace the competition."