USArmy i got my definition from Rational Wikipedia which states:
"Argumentum ad popular is a logical fallacy that occurs when something is considered to be true SOLELY [note this word] because it is popular. Undoubtedly many popular notions are true, but the truth is not a function of their popularity EXCEPT [note this word] where other factors ensure that the popularity is related to truth.
What are some other factors? That the vast majority of grandmasters believe it is true that chess is a draw when neither side makes an error. [ not just a majority--a vast majority]
That grandmasters have far more chess knowledge and understanding than the average person.
That in the history of chess there has not been one game discovered [out of billions of gamess] where a game was won without one side making an error. Grandmasters know this.
That grandmasters in their games against other grandmasters have a lot of draws.
There are more more things to consider other than the popularity of this notion.
You have conveniently left out the words "sole" and then "except"
It’s pularity is NOT related to truth!
Legitimate use[edit]
When the truth value of the proposition is really a function of the popularity. This can arguably be the case in grammar (most native speakers think a certain construction is grammatical, thus it is grammatical), and matters of convention and etiquette.
There is NO relation between the opinions of GM’s and the outcome of solved chess.
USArmy i got my definition from Rational Wikipedia which states:
"Argumentum ad popular is a logical fallacy that occurs when something is considered to be true SOLELY [note this word] because it is popular. Undoubtedly many popular notions are true, but the truth is not a function of their popularity EXCEPT [note this word] where other factors ensure that the popularity is related to truth.
What are some other factors? That the vast majority of grandmasters believe it is true that chess is a draw when neither side makes an error. [ not just a majority--a vast majority]
That grandmasters have far more chess knowledge and understanding than the average person.
That in the history of chess there has not been one game discovered [out of billions of gamess] where a game was won without one side making an error. Grandmasters know this.
That grandmasters in their games against other grandmasters have a lot of draws.
There are more more things to consider other than the popularity of this notion.
You have conveniently left out the words "sole" and then "except"