The Sphere is the main character in Las Vegas right now. If you’re flying into the city from the right angle, half the plane sees it out the window and feels obligated to tell the other half what they’re witnessing. The woman on the flight next to me, who said she’d been to Vegas precisely 52 times, told the first-timer sitting in the window seat that the main thing he had to do this week was get into the Sphere. No problem, he said. He had U2 tickets. I, in the aisle seat, silently cursed him.