How to Perform the "don't blink" card trick

This videos shows the instructor performing the don't blink card trick. The video begins with the instructor holding six cards all of spades and numbers excluding the ace card. He then said his friend asked him why he does not play poker anymore and he responded with " Well the last time i played i zapped somebody". The instructor then slides his fingers over the cards and they reveal as completely different spade cards with no explanation of how the trick was done. The instructor does note that he will reveal the answer to how the trick was performed if they message him on YouTube personally.