Prediction: PS4 to sell a minimum of around 70% of its lifetime sells in the first 2 to 3 years in the market.

[ICStats]

Chark said:
You know what, I'll give you this one. PS4 will sell to over 70% of the population within the first 3 years therefor making it impossible to make you wrong.

Clearly the OP thinks PS4 will sell over 70 million PS4s in it's first 2 to 3 years.  OP, I think you're too optimistic.