But is there really more warehouse space per person (or at least per patch of dense residences)? They imply so with: >Online shopping warehouses require around

But is there really more warehouse space per person (or at least per patch of dense residences)? They imply so with: >Online shopping warehouses require around three times the logistics footprint of physical shops. But this isn't supported in any way. I could see arguments either way, but are shop warehouse stores denser or just narrower in scope?