When Odysseus gives Polyphemus his real name why does this cause trouble?

When Odysseus reveals his real name to Polyphemus, he inadvertently seals his fate by inviting the Cyclops's wrath. Polyphemus, angered by Odysseus's deception, calls upon his father, Poseidon, to seek revenge. This act of hubris not only endangers Odysseus and his men but also prolongs their journey home, as Poseidon retaliates by creating obstacles and storms at sea. Ultimately, this moment highlights the consequences of pride and the importance of wisdom in leadership.