I saw a similar photo online yesterday so I decided to try it to see if it actually worked… and it does! This all works thanks to the 21 magnets that are in the Smart Cover. I tried to pull a little bit on the iPad to make sure it was not going anywhere and you can really tell it’s relatively safe. The magnets are strong enough that your iPad is not going to slide down. Likewise, the magnets that hold the Smart Cover to the iPad are pretty strong too.
Somewhat useless but fun to try.