You should do more videos about "feedback" like this. It is such a hugely underappreciated aspect of design, especially in computing.<br><br>"Feedback" being some kind of indicator your request is being processed, of which the progress bar is an example. Other examples are things like button-presses (in the UI)... we've all used software before where you press a button and nothing on your screen indicates that your action has even been registered. <br><br>Appropriate feedback is so important when designing software or websites despite the fact they have no material impact on any underlying processes. Just in preventing anxiety or frustration from users.