According to the Global Covid-19 Index, which scores how well 184 countries are coping with the pandemic, Thailand has cause for celebra­tion; the Southeast Asian nation currently occupies second spot in the rankings, behind Denmark. But the Land of Smiles should have been smiling for very different reasons, as 2020 was supposed to mark the 60th anniversary of its lucrative tourism industry. It was expecting 42 million inter­national arrivals to stream in, spending US$77 billion while they were…