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As the ratio of Coulomb energy to bandwidth, or the screening length set by gate distance, is reduced, determine whether each crystal melts into a Fermi liquid directly (first or second order) or through intermediate phases such as stripes, bubbles, microemulsions or a quantum-melted state without charge order but with insulating transport. An answer is a phase diagram versus $\\nu$ and screening length with the order of each transition.","problem_ref":"ae6d90ec488ed4367b3c5eab698ac808a191846ee10837d7d065323d1a4bc208","references":"","settled_by":"Local imaging of charge order versus gate distance and density, with compressibility measurements locating each transition and its hysteresis.","status_note":"","title":"Quantum melting of generalized Wigner crystals in moire 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