World and personality. The age-old dilemma: can one person influence the whole world? Or will history simply slide back to its natural state? If we send our contemporary with samples of the latest weapons, machine tools and technologies to 1904, will this change the outcome of the Russo-Japanese War, and after it the entire revolutionary situation in Russia? Or will time, like an avalanche, go around this barrier and roll further along its path? And if at the moment of transfer something goes wrong and the traveler ends up in a completely different time and place. And instead of the valiant sailors, there will be red-skinned Indians around...