Question

What makes trade and with it the exchange of culture, people, and ideas between bangkok and seattle possible?

Answer 1

I think sea-borne transportation that developed makes possible the exchange of goods, cultures, and ideas between the countries bordering the Pacific Ocean. These sea routes became established beginning in the 16th century and grew with the European contacts with Japan and China in the 19th century. 

Answer 2

The ocean as a highway! (-;