Forbes India's Naini Thaker—the author of the cover story this fortnight—and Rajiv Singh—anchor of the 'Roaring 50s' special—unpack the latest edition on stands which analyses, recognises, and celebrates founders who started up in their late 40s or 50s, and how a clutch of former professionals, like Nykaa's Falguni Nayar and Digit Insurance's Kamesh Goyal, have found success after taking the plunge and shining, instead of settling, in their twilight years