High above the Earth, in the invisible highways where human civilization has quietly extended itself, a reckoning is taking shape. A new European report has given formal weight to what space engineers have long suspected: the accumulation of orbital debris is approaching a threshold beyond which the consequences may become self-perpetuating and irreversible. The crisis is not merely technical — it is a confrontation with the oldest of human habits, the tendency to treat shared commons as infinite, and the belated recognition that even the sky has limits.