Many people said the gambling is just a game and another people said it is Investment. How do you think?

For simplest explanation, gambling is a matter of fortune. No matter how long you gamble as long as you play the game, you don't have a difference with new gamblers in terms of winning the game.
That's not pretty simple for me, if we talk about having fortune in gambling life would be complicated as we might compel ourselves
in gambling but if we only think it as an entertainment, we will also love to do it despite losing.