I think players will double their original bet after receiving their first two cards if they believe that the third card will give them a strong total. This strategy works best when players are dealt with a total of 9, 10, or 11, because in those cases, there is a higher probability that the third card will result in a total of 19, 20, or 21.That being said, doubling down is still a risky proposition, as there is a chance that the third card will not result in a strong total, which could result in a significant loss of chips. Therefore, players should weigh the potential risk and reward before opting to double down.