The list author says: "If you're on a budget, or are a minimalist, or just like to do bushcraft, this will help you. Based on Dave Canterbury's videos, this list contains all of the items you will need to survive all on your own."
"About 3 will do. Gather water, collect food, carry game, use for a poncho, use for water proof pants, water proof your pack you name it. Even build shelter."