For example, the use of a car or plane, insofar as it exceeds all private or individual human power, represents an aggressive manifestation of the human ego, which, on the one hand, asserts the identity of the driver or user and, on the other hand, threatens the identity or even the existence of those in the environment of this activity. If only for that reason, speed and power incite all people to use the same means to assert and protect their own identity.