Monica sent us a link to the following homework page for the Cloud Physics course from the Weizmann Institute of Science.
In an introduction to the class Both Sides Now is mentioned:
"In this course we will introduce the complexity of clouds and we will see how clouds form and interact with the thermodynamic and radiative climate systems. We will see why, as Joni Mitchell said 'we are looking at clouds from all sides and still we see mostly cloud illusions and we really don't know clouds at all.'"
There's no more illusions about it. Thanks to Monica we can all enroll in cloud class!