> On the projector there's a delay between any press and the projector giving you any feedback, so you don't know if a press registered or not. This a related

> On the projector there's a delay between any press and the projector giving you any feedback, so you don't know if a press registered or not. This a related issue with slow response times of modern UIs. I spent a decent chunk of my career replacing AS-400 systems with ones accessed through the browser. Those AS-400 systems were often hosted in the building and were written to run on servers from the 80s or earlier. With modern hardware they rendered screens within single digit ms and I think the emulator did some input queueing. Users would know that to, as an example, change someone's address they'd have to hit 7, 3, enter, 3, tab, tab and start typing. With a browser interface they couldn't do that because the latency was unpredictable and the page might not be ready for their input. Usually we ended up slowing the users down significantly.