Every email client on earth has made it trivially easy to commit one of the most devastating acts of workplace communication: the unnecessary reply all.
One click. That is all it takes. One click and suddenly forty-seven people who did not need to be involved are involved. One click and an email thread that could have died quietly explodes into a cascade of responses, counter-responses, and people asking to be removed from the thread, which of course they send as a reply all.
You have a meeting on your calendar. It is thirty minutes long. There are six people invited. The topic is something that could be summarised in two sentences. By the time everyone joins, exchanges pleasantries, gets distracted, and finally discusses the actual subject, you have burned three person-hours of collective time.
That meeting should have been an email.
But wait. You sent an email. It was three paragraphs explaining a decision. Nobody needed to respond. Nobody needed to discuss. You just needed people to know something. Now six people have another email in their inbox, another thing to read, another context switch in their day.