If You Wish To Make An Apple

A Single Message From Space Will Show That It Is Possible To Live Through Technological Adolescence. . . . It Is Possible That The Future Of Human Civilization Depends On The Receipt Of Interstellar Messages.

In A Lot Of Scientists, The Ratio Of Wonder To Skepticism Declines In Time. That May Be Connected With The Fact That In Some Fields-mathematics, Physics, Some Others-the Great Discoveries Are Almost Entirely Made By Youngsters.

As Agonizing A Disease As Cancer Is, I Do Not Think It Can Be Said That Our Civilization Is Threatened By It. ... But A Very Plausible Case Can Be Made That Our Civilization Is Fundamentally Threatened By The Lack Of Adequate Fertility Control. Exponential Increases Of Population Will Dominate Any Arithmetic Increases, Even Those Brought About By Heroic Technological Initiatives, In The Availability Of Food And Resources, As Malthus Long Ago Realized.

There Are Naive Questions, Tedious Questions, Ill-phrased Questions, Questions Put After Inadequate Self-criticism. But Every Question Is A Cry To Understand The World. There Is No Such Thing As A Dumb Question.

Some 5 Billion Years From Now, There Will Be A Last Perfect Day On Earth... Then The Sun Will Begin To Die, Life Will Be Extinguished, The Oceans Will Boil And Evaporate Away.