" The number of possible chess positions after White’s first ply move is 20 (16 pawn moves and 4 knight moves). There are 400 possible chess positions after two ply moves (first ply move for White followed by first ply move for Black).
There are 5,362 possible positions(White’s second ply move) or 8,902 total positions after two ply moves each. There are 71,852 possible positions or 197,742 total positions after four moves. There are 809,896 possible positions or 4,897,256 total positions after 5 moves.There are 9,132,484 total positions after 6 moves. From move 7 the possible positions stabilize as chess lines end, even from move 2 some chess lines end. There are +-10,921,506 total possible positions after 7 moves.
The special draw, the King's draw, should occur a minimum of 32 times. The longest recorded game ended in a draw after 269 moves."
http://www.chess.com/chessopedia/view/mathematics-and-chess
There are just way too many positions for a human to memorize. Even if your opponent knows the opening better than you, they also have to know how to take advantage of how you misplay the opening.
Quote rom OmegaChess.com:
"In the past 200-so years Chess has been over-analyzed, over-studied, every possible opening catalogued and memorized, every possible ending scenario played and replayed millions of times, the novelty factor of Traditional Chess had disappeared. Above a certain level, playing Chess simply means replaying some form of opening and ending from memory. Any small mistake causes the other party to lose."
I have never really tried to learn the openings. The openings are played to the degree where chess is like a game where you just memorize the opening and endgame moves and skills don't play as much. And yet many professional chess players seem to do it...
I would prefer it so that we don't read so many moves ahead.
Even the world champion retired from chess cause after beating everyone, he found no interest in chess anymore... (I think this part is correct)
Well, these are my thoughts.