Add to those incidental precursor inventions: fire. The germ theory of disease. Steel. The scientific method. Organized economic systems. Democracy. It's easy

Add to those incidental precursor inventions: fire. The germ theory of disease. Steel. The scientific method. Organized economic systems. Democracy. It's easy to point and say "See! This is just an outgrowth of whatever." Not sure what actionable conclusion to draw from articles like these.