It depends on the nature of your work.<p>In some types of work, individuals are supposed to do their own time management, <i>and</i> carve out chunks of time for activities that require sustained concentration, <i>and</i> respond appropriately to occasional requests, which are a mixture of low- and high-urgency. For example, someone who needs to read complex academic papers, but occasionally might be interrupted for an urgent production incident. For them, time management is all about avoiding distractions - like synchronous conversations about trivial matters when they're supposed to be working.<p>Other areas of work have far less need for uninterrupted blocks of time. A manager doesn't just change tasks every hour, they often also respond to e-mails and chat messages during meetings. For them, time management is all about choosing between overlapping meetings, and managing the length of their queue of work by rejecting and delegating tasks. And of course talking to people is the core of their job.<p>For the former, sending a 'hi' message without the context needed for them to triage it into urgent or non-urgent means they're interrupted twice instead of once - which is pretty inconvenient.<p>For the latter, though? A dozen interruptions per hour is completely normal, what's the problem?