Trade is about the exchange of goods and services for money.
Trade in and of itself does not dictate where it occurs, but rather wherever buyers and sellers can meet to negotiate and execute the exchanges. So, to the extent that we could order and send our best friend a birthday present in our pyjamas at 3am in the morning, without ever having to visit a physical store to conduct that exchange of good for money, trade has been transformed. Trade is about the exchange of goods and services for money. Trade in and of itself does not dictate where it occurs, but rather wherever buyers and sellers can meet to negotiate and execute the exchanges. So, to the extent that we could order and send our best friend a birthday present in our pyjamas at 3am in the morning, without ever having to visit a physical store to conduct that exchange of good for money, trade has been transformed.