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Whether any natural system shows criticality without such hidden tuning is unresolved.","posed_since":"","precise":"Determine whether physically realizable driven dissipative systems exist whose steady state is critical (avalanche distributions with a cutoff diverging with system size) for an open set of control parameters, as opposed to requiring the double limit of drive rate $h \\to 0$ and bulk dissipation $\\epsilon \\to 0$ that maps self-organized criticality onto a tuned absorbing-state transition. Answer: yes with a model or experiment, or no with a general argument.","problem_ref":null,"references":"","settled_by":"A model or experiment showing size-divergent avalanche cutoffs over a finite range of drive and dissipation rates, or a proof that the double limit is necessary for a stated class.","status_note":"","title":"Whether self-organized criticality needs hidden fine 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