Does anyone here remember the old game “press your luck” on TV? It’s the parent game of the one we have now, “whammy” (If not, Wikipedia is your friend)
There was a man named Michael Larson that memorized the pattern the board would take. He then went on the show, and using his timing knowledge, was able to walk away with over 100k US.
My point is, having memory of the board patterns, plus knowledge of the randomization process done, was sufficient enough that he could assure himself exactly what he wanted.
If one man could memorize 6 board patters with split-second timing, It naturally follows that one could memorize the position of 47 (at maximum) cards in one’s deck. For example, let’s say I have a 3-minute shuffle method that places the cards from slots 1,7,13,15,27,33 on the top of my deck by the end. (This is purely an example, but certainly possible)
I play PONT, say “Oh I need to de-clump” and place my god hand into those slots, while also pretending to de-clump the cards I don’t want, placing them into other slots. I then proceed to do my shuffle technique.
Now, as it stands, unless my opponent cuts, my deck is stacked. Even if they DO cut, the first few cards I see will tell me exactly where the cut was, and what is next in my deck.
That’s why de-clumping is wrong. Not because YOU cheat, but because people CAN cheat.
It only takes one to ruin it for everyone. That one will ALWAYS exist. Hence, we take precaution against it.
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As an aside. Vaporeon, please for love of $diety$ stop bringing up netdecking. You've had your billion anti-netdecking posts, that's not what the topic at hand is. Let's keep this focused here.