To a reasonable degree of scientific certainty
"One of the traditions of hospitality is “generosity.” You got to treat your guest well with, at least, enough food and drink. However, restaurants offer large portion to show the value of money which ends a waste of food."
What is Gambling?
In its broadest definition, gambling is the act of placing stakes on an unknown outcome with the possibility of securing a gain if the bettor guesses correctly. To be considered gambling, an act must have three elements:
Social gambling is conducted among individuals who bet against each other; mathematically, each player has the same chance of winning. Poker is a classic social game
In mercantile or commercial gambling, players bet against “the house,” a professional gambler or organization that accepts wagers from the general public. Mercantile games have a mathematical advantage for the casino or a house edge that lets professionals profit from them while still offering fair games.
I met Ninja aka Tyler Blevins aka pro Halo player at Blizzcon 2015!