Columbia subject headings:
Civilization, Modern.
Forecasting.
Social change.
Technological forecasting.
Twenty-first century--Forecasts.
Harvard subject headings:
Civilization, Modern
Forecasting
Social change
Technological forecasting
Twenty-first century--Forecasts
Princeton subject headings:
Civilization, Modern.
Forecasting.
Social change.
Technological forecasting.
Twenty-first century--Forecasts.