In the wake of World War I, technology made life faster and connected more people than ever before. Cars made travel easier, especially over long distances, compared to horses and carts. Cars also had social implications: unmarried couples went on dates in cars and were allowed to roam unsupervised, unlike the old days when a chaperone was expected to be present to prevent anything inappropriate from occurring. As a result, cars became associated with freedom and recklessness. Commercial airline travel, which had started in the 1910s, began to become more prominent in the 1920s as well.
Movies and radio also boomed during this decade. From the 1890s onward, people had more leisure time than ever before, and these were two new forms of entertainment that left the world spellbound. Movies, particularly Hollywood films, allowed consumers vicarious escape into glamorous fantasy worlds of romance and adventure. Movie stars such as Rudolph Valentino, Gloria Swanson, and Clara Bow influenced dress styles and even behavior to a degree during this period. Sound films, though they had been experimented with since the 1890s, would become popular in the late 1920s, replacing silent films entirely by the early 1930s in most countries. Radio allowed people to listen to sporting events, news, popular music, and drama shows without leaving home.
Other technologies of this period include television (though this would not be perfected for consumer use until the late 1940s), antibiotics, and air conditioning (while invented at the turn of the century, it slowly became more common during this decade). Overall, these technologies made life more comfortable and connected people in ways that would have been unthinkable even twenty years before.