I never did get a reference to that article. I'd have to read it myself before I'd believe Backpacker made that claim.
Sorry to bring this one back to life guys but I have to...
Backbacker December issue. Page 80. Here's my favorite excerps:
Step 2 Weigh everything (This is where they claim a razor blade is as good as a knife)
Step 4: Change your bedding (get a lighter sleeping bag and sleep in your clothes)
Step 7: Ditch the map
Step 9: Take less medicine (They recommend antibiotic ointment, duct tape, gauge pads, bandages, and blister treatment only)
Step 10: Empty your bottles (don't carry water...1L max if needed and guzzle when you find water long the way)