It is convenient to fall into the king. It is known in advance that everyone will obey any instructions in unison. It is no less pleasant immediately with the company, and with the nuclear cruiser, to engage in beating sailing troughs, establishing hegemony forever. It is still good to please in June 1941 with the skills of a saboteur and accurate information about all dates and weapons. True, the combination of the head-computer and the special forces is quite amazing, but which does not happen. But what about yesterday's schoolboy who has absolutely no idea about the history of past centuries in addition to modern TV series and who does not know how to beat one left seven, while casually grinding AKM on the machine? Plus a peasant son in the 18th century?