random thought: logarithmic growth vs cloud growth

Where a logarithmic growth is expected to develop to a consistent curve, clouds will have individuated rates of logarithmic growth based on density of particles.
This means measuring an overall logarithmic growth rate gets an average rate lower than the source cloud dominating actual growth. The position on the growth curve varies once an individual cloud impacts a second cloud because there is a transfer of particles from the higher rate cloud to the lesser rate cloud achieving an artificial growth spike in the lesser rate cloud, but also an artificial down turn in growth rate of the higher rate cloud. If clouds merge, they can achieve a group density of particles higher than the higher rate cloud.
Cloud particle density increases 'self-infection rate'. At some point the cloud saturates and collapses. This results in dispersal of particles that can join other lower rate growth clouds, the particles dispersing along flow paths. Smaller clouds absorbing free particles can reach higher rates of infection in shorter time.