6. A similar problem arose when I had to decide whether to regard such pictures as these as single or double glyphs:

Here there was no practical problem, no extra letter would be needed if I decided to treat each of these five examples as two glyphs.

But my intuition told me they could not be double glyphs. They had to be single glyphs, because of their meanings (which I had began to vaguely discern at that time). Furthermore, in the first and fifth examples the left and right parts rather obviously belong together.

My decision was that horizontally disjoint elements should belong to the same glyph if the space between the elements was narrow. Also this was a correct decision, but not based on good luck but on good intuition.