Why atomic
One condition at a time
Complex strategies hide their weaknesses: when ten conditions are ANDed together, you never know which one carries the edge and which ones are noise along for the ride. The scanner tests each condition alone, so what survives is a real, isolated statistical tilt — the atom you can then build with.
Stability
An edge that comes and goes is not an edge
The killer feature is temporal stability: the scanner doesn't just measure each condition over the whole history, it checks whether the tilt persists across sub-periods. An "edge" that only worked in 2008 gets flagged as what it is — an anecdote.