Don Pearce wrote:

No, resolution is not frequency dependent. It is constant all the way
up to the Nyquist frequency.

Perhaps resolution isn't the right word, but it's obvious that the error
on any individual sample is higher if noise has been added than if it
hasn't, and averaging that error over several samples will reduce it.
Perhaps I should have said signal to noise ratio, compared in different
frequency bands.

Think of it as all the energy being piled into tall heaps
rather than being spread out.

Yes, but it's the same total energy, which is what I meant by level.
I don't think we're in fundamental disagreement.

Anahata