[Elsie]

You can't have a cumulative effect from a "signal" that's dwarfed by the noise. It doesn't accumulate. It never goes anywhere.

UH....

I suspect you are WRONG here.

[Elsie]

Think of hundreds of noisy CCD pictures, in which none of them have a visible image, yet, when added together in a computer, the 'noise' averages out and the image, which was buried in ALL of the frames, nows stands clear and sharp.