I Agree, Along With Carl Sagan, That

Impossible Is Relative.

For Most Of Human History, We Could Only Watch, Like Bystanders, The Beautiful Dance Of Nature. But Today, We Are On The Cusp Of An Epoch-making Transition, From Being Passive Observers Of Nature To Being Active Choreographers Of Nature. The Age Of Discovery In Science Is Coming To A Close, Opening Up An Age Of Mastery.

There Are So Many Wonders Awaiting Us. If We Can Upload Memories, Then We Might Be Able To Combat Alzheimers, As Well As Create A Brain-net Of Memories And Emotions To Replace The Internet, Which Would Revolutionize Entertainment, The Economy, And Our Way Of Life. Maybe Even To Help Us Live Forever, And Send Consciousness Into Outer Space.

Chances Are, The Aliens Will Not Want To Land On Our Backyard, Or Even The White House Lawn, With Their Flying Saucers. They May Have Tiny, Robotic Self-replicating Probes Which Can Reach Near Light Speed And Can Proliferate Around The Galaxy. So Instead Of The Enterprise And Huge Star Ships, The Aliens Might Actually Send Tiny Probes To Explore The Universe. One Might Land On Our Lawn And We Won't Even Know.

I Would Like To Believe That Crop Circles Are Evidence Of Visitation. But There Have Been Too Many People Who Have Admitted To Creating These Crop Circles, And Too Many People Who Have Shown How To Make One On Tv Programs, So I Have My Doubts.