Sheer Lunacy

JANEWAY: 

Maybe we can't out-think them. 

CHAKOTAY: 

Captain? 

JANEWAY: 

We have to assume they've planned for every contingency, including anything we could come up with to undermine their plan. 

This thing has been driving me crazy. 

You said you knew the solution. 

Prove it. 

(Janeway hands the Sheer Lunacy to Seven, who presses a few buttons and all the lights go out. She has solved it.)

JANEWAY: 

Seven, how'd you do that? 

SEVEN: 

I scanned the device. Its mechanism operates on a simple fractal regression. 

PARIS: 

You scanned it? That's cheating. 

SEVEN: 

Cheating is often more efficient. 

JANEWAY: 

If you can't solve a puzzle, cheat. 

If you can't out-think a Think Tank, don't try.