ANNOTATION:
A Futurology hypertext

The freely redistributable hypertext "Human Knowledge 2000"
is available at http://humanknowledge.net and includes
a section on futurology:
    5.7. Futurology
      5.7.1. Impossible Advances
       5.7.2. Improbable Advances
      5.7.3. Academic Developments
      5.7.4. Technological Developments
      5.7.5. Industrial Developments
      5.7.6. Sociopolitical Developments
      5.7.7. Challenges
      5.7.8. Possible Catastrophes
      5.7.9. Timeline