Well, it can also radiate away in the form of EM radiation, typically infrared. That takes time though.

Yeah, younger generations use snap a lot more. When they want to interact with older people though, Facebook Messenger is the go. I don’t know any workplaces or community groups that use Snapchat to communicate with everyone, and not everyone has an iPhone, but getting on the work Messenger chat group is almost mandatory at every place I’ve worked at in the last ten years. My kids, who are Gen Z, have the same experience.

Facebook Messenger is the default messaging app in Australia too. If you tell any someone that you’ll message them, you mean you’ll find them on Messenger. If you have their number it might mean SMS, but probably not.