Good morning from Skift It’s Tuesday, December 29, in New York City. For daily updates in your inbox, subscribe to the Skift Daily newsletter at skift.com/daily. And now, here’s what you need to know about the business of travel today. The biggest challenge for the online travel sector in 2021 is the shape of the travel recovery, and the myriad issues that flow from whatever scenario takes hold, writes Executive Editor Dennis Schaal.