The signal-to-noise ratio is real. If you want to hide information, the secret isn’t to… well, hide it. The secret is to bury it. Make the information you want to keep hidden part of a flood of information so banal and uninteresting that no human mind can penetrate it.
You can even do this by accident, that’s how effective it is. Want someone to miss an important update from you? Easy, just send them ten updates a day, and call all of them important. If The Boy Who Cried Wolf was around today, he’d mark every email “urgent.”
The Opportunity Machine 