Gathering all the people of the world, dethroning the tyrants in everywhere, expanding education at its maximum level in all stages, clearing this matter completely that difference of language, race, and geographical region and like that is not a reason for the people of the world not to live in a family like brothers and life in peace, justice and brotherhood, and providing a healthy and enough economy for all the humans needs cultural growth and advancement of human knowledge on the one hands, and evolution of industrial equipments on the other hand; equipments which can connect all parts of the world very fast, close and permanently, which it is not possible without the pass of time, either.

How is it possible for a government to control the entire world if connections are slow!

How is it possible to rule the world by the equipments which need one or some years for sending a message to faraway parts of the world!

It is understood from a part of narratives, which picture the lifestyle of the people of the world at the time of Mahdi (pbuh), - and we will discuss about it completely later, God willing - that the advancement of technology and industries, especially transmissions and communications, in that time is in the way that large continents of the world practically become as some neighbor cities; and even the East and the West will be considered as one home; the problem of the time and place will be completely solved.

Albeit, it is possible that some of these matters happen in that time in the form of an industrial revolution, but anyway, a scientific preparedness is needed as the background at the beginning of this age.