Wang Huiyao of the China Western Returned Scholars Association, which celebrates its centenary this year, observes that sea turtles have returned in five waves.
But the merchants have been suffering for months since the Trump Administration has pulled out of the Iran Nuclear Agreement and hit Iran with wave after wave of crippling sanctions.
The waves of lay-offs that followed the global financial crisis left a lot of extra work to do for those who remained, and the ubiquity of communications tools makes it difficult for them to get away from their job.