Well, another hypothesis could be that people use data packs more on rainy days because the sound of raindrops hitting the windows creates a peaceful, relaxing atmosphere. So, they might just want to enhance this cozy vibe by diving into their favorite apps or websites while enjoying the soothing ambiance of the rain. It's like a digital cocoon where you can escape from the gloomy weather outside and immerse yourself in a virtual world of entertainment and information. Who needs sunlight when you have a reliable Wi-Fi connection and a smartphone full of possibilities, right?