The reason for this is that historically most civilizations, or phases of civilizations have lacked two things. One is the strong, persistent social institutions needed to maintain the momentum of scientific progress. The other is a solid socialised understanding of scientific methods. To maintain consistent scientific and engineering development you need both, and possibly a third in the from of the printing press,…
More than all of this - the key is political leaders. Visionary political leaders make or break their country or end civilizations. Both India and America are witnessing this currently with their respective elected right-wing "leaders" in Narendra Modi and Donald Trump. In India Astrology is now being treated as a Science and the Modi government is considering allowing alternate medicine (Ayurveda / Homeopathy / Unan…
Modi may well promote nonsense, but the institutions of higher education and science in India still exist and have enough prestige and social and economic momentum that I believe they will continue to sustain themselves. Similarly Trump continues to talk utter nonsense about Coronavirus, and even knowingly misled his followers throughout the first 6 months of the outbreak, but still has Dr. Fauci leading the medical response because even Trump can't completely sideline the scientific community.