I am also good in counting of cards and couple of my friends are expert in this thing.When at weekend we all are together surely cards in usual things to play for fun.It is art and necessary if you want to be called gambler.Unfortunately you can not apply this thing in online casinos as your have no idea what is happening around you.
Have you ever done it at a casino ? How much did you make if you have ?
It`s not a myth, but its really hard to count cards. Did you ever try simple game with cards. You take all deck and you have just 2 seconds per card, then you try to remember how they are lined? Well try and tell us how much cards did you remember.
And that was easy, you were concentrated on that. But under casino lights, million sounds around, real money in front of you, watchin about who knows how many things.. and in that moment try to count cards. Well its very very hard thing to do. You need to have good memory, and to practice it a lot.
I tried and wow, lol no i can't remember anything xP