I don't think the issue is if we need to respond urgently, but rather if we want to respond urgently. Sure you can wait an hour until the end of lecture, but ma

I don't think the issue is if we need to respond urgently, but rather if we want to respond urgently. Sure you can wait an hour until the end of lecture, but maybe you want to develop a capability and a reputation for putting out fires quickly. Do I really need to justify the value of this to the professor? The question is if I'm paying for a lecture is it reasonable for them to mandate my own non-disruptive activities in lecture. I don't think so. We also need to consider that professors are egotistical creatures (as all humans are), so they're going to oppose anything that detracts from the perceived value of their work. What's the balance here between improving student welfare and making professors happy?