The proliferation of remote work has freed a growing number of employees from commuting, yet it has simultaneously diminished informal social interactions in the workplace. Given that creativity and team collaboration often stem from chance encounters by the water cooler or casual chats in the hallway, should companies mandate that employees return to the office for several days each week in order to preserve these "serendipitous sparks"? Please articulate your stance, providing reasons and concrete examples to support it.