IBM is ending its decades-old remote work policy — QuartzTeam proximity appears to help foster better new ideas. One Harvard study found that researchers who worked in close physical proximity produced more impactful papers. Another report used data from badges that collect data on employee interaction to argue that employees who have more chance encounters and unplanned interaction perform better. This idea, known as the “water cooler effect,” has been embraced by the most successful technology companies. Steve Jobs was obsessed with creating unplanned meetings, going so far as to propose building all of the bathrooms in Pixar’s offices in only one part of the building to encourage them (luckily for Pixar employees, someone vetoed this idea). Facebook offers workers a $10,000 bonus if they live near headquarters.