[bleah1000]

At 2:50 the person puts the level on the book, and it's clearly not level. It's not badly off, but then again, the phone doesn't move really fast.

When the phone is on the level table, it's also not moving, but maybe the surface is not as smooth as the book.

In addition, putting on a bunch of cards that are extremely light showing they don't move doesn't prove anything, even if you stack them up.

It would have been better if the video started out with the level on the book at all times, and showed an item of similar weight on the book that doesn't move. This feels manipulated.

[Doxin]

Fair enough, but on the other hand does it really matter? I'd prefer my phone to not slide down a 2 degree incline if at all possible. Even my current phone is slippery enough to where a 10 degree surface ends with it on the floor.