I never understood this. In my dreams phones, tablets, and clocks all work. Like last night I pulled up a world map and zoomed in on Europe on a tablet, and not only did my brain fill in all the countries and even major cities (totally incorrectly as I’m in the US and not that familiar with European geography), but the website even had pop up ads that I needed to close out of to view the map without distractions. I could also Google where vikings originated and pull up a totally normal appearing Wikipedia page. Tech always works just fine in my dreams