Gambling/General : What deck penetration means

What deck penetration mean and does penetration have any effect on basic strategy play?

Deck Penetration refers to how many cards have been dealt before the dealer shuffles the cards. Most of the time Penetration is expressed as being the percentage of the deck already dealt, for instance "65%"or about 34 cards on a single deck.

Deck Penetration is really significant to card counters, but not essential for basic strategy players.

The end result is that if the dealer is not cheating, or indulging in preferential shuffling, there is no advantage to the basic strategy player if the dealer were to allow 20% penetration, then shuffle, or plunge on to the 90% penetration level.