Your friend’s phone chimes in the middle of your coffee date. You ask if she needs to take the call, and she brushes it off. “It’s just Co-Star,” she says, of the astrology app that sends a daily push ...

Within four minutes of meeting Lisa Donovan, she upends my understanding of astrology. I’d asked about her sun sign, Gemini, the curious, communicative twins of the zodiac. But instead of answering, ...