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This challenge isn't so hard as is imagined. Dangermouse's question, whose answer is "most of the picture is white noise and only less than 5% of it contains the answer", is a big hint.

EDIT: Oops, I've misread Dangermouse's question

Seter wrote:This challenge isn't so hard as is imagined. Dangermouse's question, whose answer is true, is a big hint.

Actually, I am probably blind, ... how could help anybody else that you know something?