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No known principle explains this huge gap without extreme fine cancellations.","posed_since":"1979","precise":"In the SM with a cutoff $\\Lambda$, the top loop gives $\\delta m_h^{2} \\sim -(3 y_t^{2}/(8 \\pi^{2})) \\Lambda^{2}$, so $m_h = 125\\,\\mathrm{GeV}$ with $\\Lambda \\sim M_{\\mathrm{Pl}} \\sim 1.2 \\times 10^{19}\\,\\mathrm{GeV}$ requires cancellation to about 1 part in $10^{33}$. An answer is a mechanism (symmetry, compositeness, dynamics or selection) that yields $v = 246\\,\\mathrm{GeV}$ with at most mild tuning and is consistent with all LHC data.","problem_ref":"bb9ca2e2ee12d930d868121bebc8940dd59ec3d6c3bc44b9dfa4364bbd9a7a7b","references":"","settled_by":"Discovery at a collider of the particles or form factors predicted by a specific mechanism, or a calculable non-collider mechanism confirmed by its own distinct predictions.","status_note":"LHC Run 2 and early Run 3 data (to 2025) show no top partners, superpartners or composite resonances near 1 TeV, pushing simple natural models to percent-level tuning or worse.","title":"Why is the electroweak scale so far below the Planck 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