"what's The Next Thing That's Going To

In Any New Situation, Whether It Involves An Elevator Or A Rocket Ship, You Will Almost Certainly Be Viewed In One Of Three Ways. As A Minus One: Actively Harmful, Someone Who Creates Problems. Or As A Zero: Your Impact Is Neutral And Doesn't Tip The Balance One Way Or The Other. Or You'll Be Seen As A Plus One: Someone Who Actively Adds Value. Everyone Wants To Be A Plus One, Of Course. But Proclaiming Your Plus-oneness At The Outset Almost Guarantees You'll Be Perceived As A Minus One, Regardless Of The Skills You Bring To The Table Or How You Actually Perform.

Our Three Big Emergencies Are Fire, Loss Of Pressurization Or Contaminated Atmosphere. Any Of Those Things In A Spaceship Are Very Deadly And Time Critical. Everybody's Trained, But I'm The Commander Of The Ship, And It's Up To Me To Decide.

Other Anatomical Changes Associated With Long-duration Space Flight Are Definitely Negative: The Immune System Weakens, The Heart Shrinks Because It Doesn't Have To Strain Against Gravity, Eyesight Tends To Degrade, Sometimes Markedly (no One's Exactly Sure Why Yet). The Spine Lengthens As The Little Sacs Of Fluid Between The Vertebrae Expand, And Bone Mass Decreases As The Body Sheds Calcium. Without Gravity, We Don't Need Muscle And Bone Mass To Support Our Own Weight, Which Is What Makes Life In Space So Much Fun But Also So Inherently Bad For The Human Body, Long-term.

Imbibe Three Or Four Times As Much Water As You Think You Need And Skip At Least One, If Not Two Meals, When You Are Travelling. You Should Arrive At Your Destination Feeling Slightly Hungry And Your Digestive System Reset.

When I Stand On The Edge Of A Cliff Or Right At The Edge Of A Building Or Something, It's One Of The Few Things That Gives Me Kind Of A Deep, Overwhelming, Irrational Fear Where It Affects My Physiology.