S E X
To me, SEX is just "Special EXperience", it could be anything from being with my Baby across a thousand miles, to being able to once experience the beauty of driving a Tesla, or making a life on Mars. If still single, then the invitation to be the sole operator of a spacecraft going to the stars would also be on the list, but being hers makes that desire be scratched off the bucket list.
It is kinda like Vin Diesel being dragged out of a Hercules plane by parachute, and shouting "I LIVE FOR THIS SHIT!" We all have the stuff that makes us feel great, and many of us are now seen cooperating on initiatives that make a better world, and that is not just the result of guys like Elon Musk