How many acres would a person need to go feral?

[Amnorix]

Anyone else watch "Naked and Afraid"? It's eye-opening how much even somewhat reasonably trained humans suck at surviving without all the amenities of life.

Basically, two people (one male and one female) get dropped off somewhere, and get to bring ONE thing each (often a fire-starter, or a fishing net, or whatever) and a knife. That's it. No clothes, no blanket, NOTHING.

The challenge is to survive 21 days. The number of tap outs, due to injuries or the miserable conditions (cold, lack of food, whatever) is pretty high, but what is universally true is NOBODY truly thrives. EVERYONE loses alot of weight (usually 10% or more of total pre-challenge weight) and it's clear that if it was a, whatever, 50 days challenge, pretty much nobody would make it.

And sometimes the conditions are full of food -- at least in theory. People even complain -- we're in a RAIN FOREST. We can hear creatures everywhere. There's all kinds of plants. Why are we starving? Why can't we catch anything?