Given this new perspective, everything discussed so far needs reevaluation. Every interpretation related to the year possibly should be inverted to its opposite.

And an important consequence is that rongorongo texts are not purely conceptual but they are intended to be read out aloud according to the glyphs.

This statement does not exclude the possibility that the rongorongo texts may be purely memory aids. It might be so that the glyphs have no firm 'translation' from glyph to word(s), and that a sequence of glyphs are needed in order to enable the reading. And of course a frame of reference must be there to recognize, i.e. choose the right interpretation among the very large number of possible ones.

A parallel problem (to the problem of ancient names = concepts interfering), which I recently have begun to think about, is the possible influence from the Arctic region (I am still reading Arctic Sky):

"...it seems fitting to begin a discussion of the Sun by first considering the period during which it is not visible. It is at this time, paradoxically, that the Sun is most obvious, for its absence has the understandable effect of stimulating an increasingly grateful awareness about its existence, together with a growing impatience for its return."

(The experience of being close to death also has the effect of reevaluating life.)

Possibly the cult of the Sun, therefore, ultimately has its origin in the Arctic region. The Inuit also have string games and they measure the season of light by using their fingers.