Cognitive dissonance: Wii U won't reach 25 million, but PS3 will reach Wii lifetime.

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Materia-Blade said:

One can predict wii u will sell any number while thinking ps3 won't cross 90m.

Sure I can make the claim the Wii U will sell 6 billion. Doesn't make it a  rational nor logical prediction. We can make decent assumptions based on historical data.