you don't expect it to work that way, you discover it. once you discovered it, sometimes you have two files that start with e and you press e to get to the one you want, but it got you to the one before it, so you press e again to go to the next one, which is faster than reaching for the down arrow. being able to select files with finesse is important in windows.
windows 9x was probably the last time any user interface tried to be this efficient, now it's just click the arrow and it will make sure to slide the next photo in very slowly in case you forgot that you're waiting for the next photo to appear
another thing i just remembered like this is how the start menu will fade in in windows XP, and submenus. but after you open one submenu and then decide to open another beside it, it admits that the animation is just a gimmick and doesnt do it again.
windows 9x was probably the last time any user interface tried to be this efficient, now it's just click the arrow and it will make sure to slide the next photo in very slowly in case you forgot that you're waiting for the next photo to appear