Any blob (continuous, smooth, rapidly decreasing function) in momentum space corresponds to a blob in position space. That is, you can’t get structure in one without structure in the other.
The narrower blob, the wider its Fourier transform. To recognise a perfectly localised blob in the momentum space one would need to measure at every place over the whole Universe.
Not every structure is recognisable as such by human eye.
Any blob (continuous, smooth, rapidly decreasing function) in momentum space corresponds to a blob in position space. That is, you can’t get structure in one without structure in the other.
The narrower blob, the wider its Fourier transform. To recognise a perfectly localised blob in the momentum space one would need to measure at every place over the whole Universe.
Not every structure is recognisable as such by human eye.