# APOCALYPSE WHEN?

##
Calculating How Long the Human Race Will Survive

### Willard Wells

But how near the end are we? How much is our ever-increasing exposure
to manmade hazards putting us at risk? What chance has the human race
got for survival?

In

*Apocalypse When?* Willard Wells takes the laws of probability as
the foundation for his carefully worked out formula for human
survival. Using common examples - stage shows and businesses - he
shows how their survival resembles humanity's.

What do they have in common?

- All are aggregates of individuals, each of whom can be replaced
- These individuals have mixed interests, both group and personal
- None of the three (species, firms, shows) has a fixed expiration age
- All are exposed to many diverse hazards.

Anticipating the controversy that his theory is bound to attract, the
author gives many examples and an in-depth explanation which
thoroughly answers the critics and provides a convincing counter-argument
to the current doomsday argument.

**Table of Contents**
Preface

Acknowledgments

List of figures

List of pictures

List of tables

List of algebraic symbols

List of abbreviations and acronyms

About the author

Introduction

- Formulation
- Confirmation
- Double jeopardy
- Human survivability
- Apocalypse how?

Appendices

A. Survival formula derived from hazard rates

B. Posterior survivability

C. Infinite mean duration

D. Survival predictor from Bayes’ theory

E. Stage productions running on specified dates

F. Extinction rates of prehistoric taxa

G. Disaggregated mortality

H. Stage productions with dual cum-risks

I. Overall plan for survivability calculation

J. Multiple hazards

K. Cum-risks for man-made hazards

L. Statistical weights for hazards

M. Extinction thwarted by civilization’s collapse

N. Initial hazard rates

References

Index

**Extent: **240 pages

**Binding:** Paperback

**Published: **2009

**ISBN: **978-0-387-09836-4

Praxis Publishing - Leaders in Scientific Publishing © 2008 All rights reserved