In urban planning, Braess's paradox is well known: adding a new road to a transport network can worsen traffic rather than ease it. For a long time, it was explained by the selfish behavior of drivers, each seeking personal gain. However, ant colonies, acting as a single coordinated superorganism without personal interests, exhibit the same trap. When scout ants discover a short trail to a food source, they mobilize the entire colony with a pheromone trail. The stream of insects rushes onto this route as if into the gravitational vortex of a black hole, sucking in more and more individuals. But the high density of movement causes crowding, and the actual speed of passage drops sharply. The most astonishing part: even when stuck in such a jam for hours, ants do not switch to a slightly longer but free detour. Their instinctive rule 'shorter is better'—an evolutionarily fixed algorithm — proves stronger than actual benefit. This same phenomenon of blind optimism, where a system fixates on a locally optimal solution, creates congestion in water pipes and computer networks. In essence, we observe a manifestation of entropy — the fundamental principle of the inevitable growth of disorder, which operates even in perfectly tuned systems without central control. Understanding this mechanism allows us to design networks so they do not get stuck in their own ant jam.