In this issue:
"What Mark Will We Leave on the Planet?": Our influence is written in the geological strata.
" Who Will Prosper and Who Will Fall Behind?": Quality of life on an increasingly crowded planet depends on decisions made today.
"Will We Defeat Aging?": Drugs already in trials could significantly extend healthy human life spans.
"Can We Trust Our Own Predictions?": What a Science Fiction writer knows about predicting the future.