If we talk about the practical aspects of the colonization of Mars, then it probably will not happen very soon. The most optimistic current model involves the transportation of a starter set of supplies and equipment, which requires dozens of huge spaceships and dozens of years of stability, prosperity and joint work of peoples here on Earth. And this, in the light of constant geopolitical conflicts, looks quite utopian.
But this does not prevent scientists from building models of an idealized version of the colonization of Mars, where everything turns out as intended by default. Scientist Jean-Marc Salotti compiled a mathematical model of the development of the Martian colony in order to understand how much resources, energy and technical means it would need. He proceeded from the principle that such a colony would not have reserves, and therefore every person, robot or object should be used to the maximum.
All colonists in such a model are universal workers who may not have the required amount of knowledge at the start, but as the colony develops, they will train each other. Initially, they do not have secondary tasks, time is a very important resource, so instead of instructing one colonist to weed the beds, another to cook dinner, and the third to repair robots, a suitable group of performers is formed for each task. At the same time, it is necessary to organize the rotation of people in order to avoid emotional burnout from routine.
Salotti identified five activities for the colonists: ecosystem management, energy, manufacturing, construction and maintenance, and social. He calculated that the minimum number of colonists to maintain life, a cheerful spirit and create resources for the development of a colony is 110 different people. Moreover, each of them will have more personal time than the average “blue collar” on Earth.