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{"model":"claude-opus-5","id":"msg_011CeUQVVpKAyRjwirDQy9tG","type":"message","role":"assistant","content":[{"type":"text","text":"Quantum entanglement is a phenomenon where two or more particles become correlated in such a way that the quantum state of one particle cannot be described independently of the others, even when separated by large distances. When particles are entangled, measuring a property of one particle—such as its spin or polarization—instantaneously determines the corresponding property of its partner, regardless of how far apart they are. This doesn't allow faster-than-light communication because the measurement outcomes appear random until compared, but it does mean the particles share a connection that defies classical intuition about locality and separability. Einstein famously called this \"spooky action at a distance\" because it seemed to violate the principle that objects are only influenced by their immediate surroundings, yet experiments have repeatedly confirmed that entanglement is real and forms the basis for emerging technologies like quantum computing and quantum cryptography."}],"stop_reason":"end_turn","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":21,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":0},"output_tokens":260,"output_tokens_details":{"thinking_tokens":0},"service_tier":"standard","inference_geo":"global"},"context_management":{"applied_edits":[]}}