Caption: Length scales of the universe mapped to the hierarchy of science---which is just a vague concept---but a useful one.
Features:
This is all rather vague, but still a useful perspective and it accords with the narrow definition of emergence.
But size scales don't always apply. For example, astronomy spans many scales and logic none or all depending on how you are thinking of it.
The axis has a logarithmic scale which just means that tick marks indicate factors (in this case factors of 10**3) and NOT absolute amounts.
Logarithmic scales are useful for displaying quantities that vary vastly in scale.