The passage below discusses the evolution of travel and its impact on cultural exchange. The author highlights how advancements in technology, such as the jet engine, have made international travel more accessible. Following this context, the passage elaborates on the benefits of increased travel, including enhanced understanding of diverse cultures and the promotion of global citizenship. However, the author also warns of potential downsides, such as cultural homogenization and environmental concerns. The overall argument posits that while travel fosters connection, it also necessitates mindfulness about its broader implications.