He Didn't Want To Believe. He Wanted

When Permitted To Listen To Alternative Opinions And Engage In Substantive Debate, People Have Been Known To Change Their Minds. It Can Happen.

The Hindu Religion Is The Only Of The World's Great Faiths Dedicated To The Idea That The Cosmos Itself Undergoes An Immense, Indeed An Infinite, Number Of Deaths And Rebirths.

Imagine We Could Accelerate Continuously At 1 G-what We're Comfortable With On Good Old Terra Firma-to The Midpoint Of Our Voyage, And Decelerate Continuously At 1 G Until We Arrive At Our Destination. It Would Take A Day To Get To Mars, A Week And A Half To Pluto, A Year To The Oort Cloud, And A Few Years To The Nearest Stars.

Any Civilization That Doesn't Develop Space Travel Dies.

Discussing The Possibilities Of Extraterrestrial Life: I Would Love It Even If They Were Short, Sullen, Grumpy And Sexually Obsessed. But There Just Isn't Any Good Evidence.