Discoverability isn’t important to shortcut functionality like this. You don’t have to navigate text with the spacebar, you can touch the text directly and tou

Discoverability isn’t important to shortcut functionality like this. You don’t have to navigate text with the spacebar, you can touch the text directly and touch and hold. You don’t have to delete numbers in the calculator, you can hit C to clear the current number and retype it (a lot of people think that doing this will totally clear your operation, which isn’t true: C is different than AC). You can hit the tabs button in Safari to switch between tabs, swiping the address bar is a shortcut. I would also argue that the safari address bar swipe is very discoverable. You can see the next tab’s address bar on the side of the interface, so it’s implied you can scroll to it. Basically, an analogy to this argument is that the author of this article should be telling us that keyboard shortcuts should be banished because they’re not discoverable. Also, I don’t think discoverability is the same on touch screens as in desktop operating systems. Nobody complains about the discoverability of pinch to zoom or tap and hold because it’s so obvious and intuitive. On the desktop, drag and drop is a similar feature that could be seen to be not so discoverable.