Chapters in this book

1. Frontmatter i
2. CONTENTS vii
3. INTRODUCTION 1
4. 1. WAITING FOR WORD 19
5. 2. INSTANT MESSAGES AND PNEUMATIC TUBES 41
6. 3. SPINNING IN PLACE 65
7. 4. SPACE SIGNALS 83
8. 5. A DELAYED CROSSING 111
9. 6. MARKS OF UNCERTAINTY 137
10. 7. FIRST MESSAGES 161
11. 8. TACTICS FOR WAITING 183
12. NOTES 197
13. ACKNOWLEDGMENTS 209
14. INDEX 211