Wannabe clearly says it is 'it is a zero sum system'.
That leads to your argument that wealth gain is at the cost to others.
Do let me see where your argument holds that a zero sum system is true.
It doesnt matter where the explanation comes from, it was explained clearly.
Wannabe, stop avoiding the point by critising a link Ive included. You need to show how a zero sum system is true. You need to because thats the only your claim that wealth is at the cost to others can hold true.
Im interested to hear you prove a zero sum system holdd true in the world economy.
In a global scenario, I would argue against Chris Yeh assertion, the winners (the developed world are the highly visible winners, and the under-developed, third world are the invisible (and without a voice) the losers.
But Chris Yeh's example was also based on Thak and Grunt's overly simplistic, mutually beneficial trades. Not all trades are mutually beneficial. Some may appear initially to be mutually beneficial, but over time it becomes apparent that there are winners and losers.
The world's resources are limited, so the only way that winners can continue to win is by creating 'products' that non-one really needs, but they become a desirable item. The losers are no better off, in fact they are less wealthy, and the winners are more wealthy.
In addition Chris Yeh's assertion is based on absolute values: that people, in general, are better off: " Both Thak and Grunt are now better off."
But that is in absolute terms,it is not in relative terms. If there were a third party intermediary, who could manipulate the trades (and perhaps the people), then both Thak and Grunt would be
relatively worse off, and the intermediary would benefit, for no real, required resource collected and traded.
BTW, you do not need to push for an answer, just be patient. We do not all spend all of our time on social media.