  Estimates of the fractal dimension $D$ of the set of galaxies in the
universe, based on ever improving data sets, tend to settle on $D\approx 2$.
This result raised a raging debate due to its glaring contradiction with
astrophysical models that expect a homogeneous universe. A recent mathematical
result indicates that there is no contradiction, since measurements of the
dimension of the {\em visible} subset of galaxies is bounded from above by D=2
even if the true dimension is anything between D=2 and D=3. We demonstrate this
result in the context of a simple fractal model, and explain how to proceed in
order to find a better estimate of the true dimension of the set of galaxies.
