How does the phenomenon of quantum entanglement challenge classical notions of locality and causality?

Quantum entanglement implies that particles can instantaneously affect each other’s states regardless of the distance separating them, challenging the classical notion of locality which holds that objects are only directly influenced by their immediate surroundings. This non-local interaction also raises questions about causality, as entangled particles seem to coordinate their states instantaneously without any observable signal passing between them, defying classical causal relationships.