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An answer is a cross-material data set with independently measured electron-phonon length plus a theory of shot noise without quasiparticles that matches it.","problem_ref":"355a05d06221cdd217d9ce6a2f32abf9a59ab515f514f1908961cf5d6771e61e","references":"","settled_by":"Length- and temperature-dependent shot-noise measurements in at least two strange-metal families with control wires of a conventional metal in the same geometry.","status_note":"Strongly suppressed shot noise was reported in $\\mathrm{YbRh_2Si_2}$ nanowires in 2023; whether electron-phonon relaxation can explain it is debated.","title":"Do strange metals carry current in electron-like 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