Look Up At The Stars,

I Have Experimental Evidence That Time Travel Is Not Possible.

Although September 11 Was Horrible, It Didn't Threaten The Survival Of The Human Race, Like Nuclear Weapons Do.

If Aliens Visit Us, The Outcome Would Be Much As When Columbus Landed In America, Which Didn't Turn Out Well For The Native Americans.

"sooner Or Later Disasters Such As An Asteroid Collision Or A Nuclear War Could Wipe Us All Out, But Once We Spread Out Into Space And Establish Independent Colonies, Our Future Should Be Safe."

Philosophers Have Not Kept Up With Modern Developments In Science. Particularly Physics.