The McKinsey Digital Flows study noted that back in 1990, “the total value of global flows of goods, services, and finance amounted to $5 trillion, or 24 percent of world GDP. There were some 435 million international tourist arrivals, and the public Internet was in its infancy. Fast-forward to 2014: some $30 trillion worth of goods, services, and finance, equivalent to 39 percent of GDP, was exchanged across the world’s borders. International tourist arrivals soared above 1.1 billion.” But here’s what’s even more interesting:

