The Filtering Onion: Five Questions from the Filter Wizard

In a career spent chasing information hidden in all forms of signals, I've boiled down the art of filtering to five essential questions:

1. Why are you filtering?
2. What are you filtering?
3. Where are you filtering?
4. When are you filtering?
5. How are you filtering?

These questions lead to another layer of the onion, prompting you to evaluate your approach:

1. Is it too complex or too simple?
2. Is it too fancy or too naive?
3. Is it too obscure or too obvious?
4. Is it too much or too little?
5. Is it too early or too late?

And deep inside this onion, we might uncover some "mythconceptions" that need to be battled, in the true spirit of The Filter Wizard.