THIS IS A WALL OF TEXT EXPLAINING ALTRUISM IN A PICTIONARY ANALOGY.

YOU ALREADY KNOW WHAT PICTIONARY IS.
BUT THERE WERE THREE OF US THAT NIGHT, SO WE COULD NOT DIVIDE OURSELVES INTO TWO TEAMS.
SO WE MADE UP NEW RULES:
ONE PERSON DRAWS, AND THE OTHER PERSON GUESSES, CLOCKWISE.
IF YOU GUESS RIGHT, YOU GET THE CARD.
THIS IS WHERE THINGS GOT DARK.
MY OTHER TWO FRIENDS SAID THAT THE PERSON DRAWING SHOULD ALSO GET A CARD IF THE GUESSER GUESSED RIGHT, AS AN INCENTIVE.
ME, STUDYING QUANTUM PHYSICS AT UNIVERSITY LEVEL SAID THAT SUCH A MATHEMATICAL EQUATION IS USELESS.
IT WILL ONLY LEAD TO THE ILLUSION OF EARNING SOMETHING FOR GIVING SOMETHING, THERE WILL STILL BE THE SAME VOLUME OF EARNED CARDS FOR EACH PLAYER.
THEY DISAGREED.
I SAID WELL LET'S TRY MY SYSTEM JUST ONCE; THE PERSON DRAWING WILL NOT GET A CARD IF THE PERSON GUESSING GETS IT RIGHT.
THE PERSON DRAWING WILL DO IT JUST FOR THE FUCK OF IT AND HE WILL DO HIS BEST AT IT SO THAT THE PERSON GUESSING GETS A CARD, AND EVERYBODY TRUSTS THAT EVERYONE WILL DO THE SAME ONTO YOU.
THERE WILL STILL BE THE SAME VOLUME OF EARNED CARDS.
WE TRIED THE SYSTEM, IT WORKED FLAWLESSLY, BUT MY FRIENDS COULD NOT UNDERSTAND WHY ONE SHOULD NOT EARN A CARD FOR GIVING A CARD.
SO WE PLAYED BY THEIR RULES THAT NIGHT.

ENTROPY IS A CONSTANT, MY MUSIC ALBUM HAD A MILLION KRONOR TURNOVER WHICH ALL WENT TO CHARITY, AND EVERYBODY STARTED SHOOTING AND KILLING EACHOTHER ON MY STREET, AND MY FRIENDS STILL DO NOT UNDERSTAND WHY ONE SHOULD GIVE SOMETHING IF NOT EARNING SOMETHING.

THE RULES OF PICTIONARY EXTENDS TO ALL THINGS, AND IS NOT TO BE TAKEN LIGHTLY. 
LEST WE FORGET! DEMENTED!