Comment by crazygringo

> Instructions unclear, and I am dumb.

You're not dumb -- it's not only unclear, but the interface actively suggests the opposite of what you're supposed to do.

One of the best lessons I ever learned was from Don Norman's famous book, The Design of Everyday Things. Which basically teaches you that the user is almost never dumb, but rather human. And that the responsibility of understanding how to interact with an object, or program, always lies with the creator of that object or program. The designer. It's their job to design something so that it teaches you how to use it. (His most quoted example involves how a plate on a door invites you to push it, while a handle invites you to pull -- and this way you'll never try to pull a door that needs to be pushed open, or vice-versa.)

In this case, the interface invites you to drag things among the various pre-existing points, to continue the "constellation". It does nothing whatsoever to suggest that it would make any sense to drag the labels on top of each other. Indeed, previous experience suggests that this would simply lead to overlapping and obscured labels, so we actively avoid it. And the lines that get drawn between nearby points and labels goes even further to suggest that this is a game or experience about connecting things in a graph-like way -- which, once again, overlapping does not fit into conceptually.

I would never have thought to drag things on top of each other if I hadn't come here to the comments.