Compact-star survival bound (Giddings–Mangano)
The argument
Because linked claim and linked claim, any dangerous black hole scenario would already be playing out inside compact stars. Since linked claim, it follows that linked claim, and the same constraint applied to Earth implies accretion timescales far longer than the Sun's lifetime, covering even the stable neutral black holes the terrestrial precedent misses.
Does it work?
Not yet evaluated.
Premises
- SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →If TeV-scale black hole production is possible in particle collisions, cosmic rays striking white dwarfs or neutron stars would produce such black holes.
- SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →Stable microscopic black holes produced by cosmic rays striking white dwarfs or neutron stars would be stopped inside those stars, whether charged or neutral.
- UnassessedNo current assessment. Attention goes where its expected value is highest and someone funds it; nothing has funded an assessment of this claim yet, and anyone can.constitution →Old white dwarfs and neutron stars are observed to survive for billions of years
- SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →Survival of white dwarfs and neutron stars constrains TeV-scale black hole accretion rates.
Where it is made
Passages where sources make, criticize or mention this argument. They record where it appears, not how strong it is, and none has precedence over another.
No source is recorded as making it.
Earlier ratings
- Jul 19, 2026
The inference goes through: if cosmic rays make such holes on compact stars and the stars stop them, then the stars' longevity bounds any dangerous accretion, and the same bound applied to Earth yields timescales far beyond the Sun's lifetime. The genuinely debated step is that stable holes would be stopped inside white dwarfs or neutron stars even when neutral, which rests on detailed stopping-power modeling; the production leg, that cosmic rays striking compact stars would produce such holes, is the other premise the argument cannot do without. The longevity premise, that old white dwarfs and neutron stars survive for billions of years, is uncontested observation, and the resulting accretion constraint follows once the first two hold.