When I saw this mushroom against the backdrop of a residential building the first thought that came to my mind. this is the idea that in our student years teachers told us that we cannot be competent design engineers if we do not know a subject called "Strength of Materials".
They even composed a song about this discipline and called it discipline hell for students because it was very difficult to pass an exam or a test in this subject.
Torques and the direction of the forces of static and objects in motion it was not easy to understand all this and I thought that it had already passed me by but now I see my daughters studying this subject and trying to help them with what I remember
So looking at a mushroom which, according to all the basics of the resistance of materials cannot be a stable structure without knowing the strength of materials it is stable and ideal in its own way.
Nature has created something that a person cannot create everything like that will collapse like a house of cards.
Zoom in on a photo for a closer view.