iirc, Niven once said he had to do so many Ringworld sequels because those meddling kids kept noticing problems with the science. In the first sequel he added ramjets to the edges to help with stability.
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Surprisingly, some Dyson spheres and ringworlds can be stable | Spyke
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iirc, Niven once said he had to do so many Ringworld sequels because those meddling kids kept noticing problems with the science. In the first sequel he added ramjets to the edges to help with stability.