Global tech trends that businesses and students should learn from include: - The rise of ride-sharing and mobile payments, with services like Uber providing billions of rides globally and mobile wallet transactions in China valued at over $15 billion in 2017. - The shift from closed to open systems in technologies like programming languages and frameworks, which are now largely open-source. - The transition from simple to intelligent networks with advances in areas such as personal assistants, home automation, self-driving vehicles, and artificial intelligence. - How technology companies are disrupting traditional industries, as seen when Amazon launched delivery services that competed with FedEx and UPS, lowering DHL's market value by over $5.5 billion.