When We Got Tesla Going At The

Facebook Is Quite Entrenched And Has A Network Effect. It's Hard To Break Into A Network Once It's Formed.

I Think You Should Always Be Seeking Negative Feedback.

It Was Obvious To Me That We Could Never Colonize Mars Without Reusability, Any More Than America Would Have Been Colonized If They Had To Burn The Ships After Every Trip.

You Could Warm Mars Up, Over Time, With Greenhouse Gases.

An Asteroid Or A Supervolcano Could Certainly Destroy Us, But We Also Face Risks The Dinosaurs Never Saw: An Engineered Virus, Nuclear War, Inadvertent Creation Of A Micro Black Hole, Or Some As-yet-unknown Technology Could Spell The End Of Us.