No text, but a visual code

[Antonio García Jiménez]

I believe the Voynich script was made with a Volvelle, a tool like the astrolabe that was used to make astronomical calculations. A Volvelle like this one for example:

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Note the sun and moon above the pointers. In my interpretation of the script, the frequent bigram [qo] is a representation of the sun rising over the horizon. [q] is just a pointer, as we see in the image of the Volvelle. [qo] is usually followed by one of the gallows. When it's one of the two-legged gallows, we see the pointer (the left leg) rise to indicate the movement of the sun. 
Although much less common, there is also [qc], which means the same thing: the moon rising over the horizon. 

The pointer indicates movement, which is why we don't see this glyph in labels and why it is the first glyph in a group of them. It is also the reason why we see identical vords with or without a pointer.