In addition to a healthy appetite for sex, I also like rocket science, and I love what Elon Musk has done to advance the space-faring technology. I appreciate all the "likes" I have got from Elon over time, the most recent one being last week when I reminded him that Mars was a vast, freezing-cold, bone-dry desert and instead of trying to build an immobile city on it, build a city that walks like a giant spider with eight, long, robotic legs so we can further explore the place rather than just getting stuck in one spot.