Merely conveying ideas isn't enough to be writing in the archeological sense, you have to actually be conveying speech. So-called "full writing" is when the wri

Merely conveying ideas isn't enough to be writing in the archeological sense, you have to actually be conveying speech. So-called "full writing" is when the written language can convey any spoken sentence and vice versa. Importantly, not all drawn symbols that convey meaning are writing. Musical notation is not writing for example. There's been an open debate in archaeology regarding the extent to which rock and cave art are actually conveying speech as opposed to some other form of communication and whether these practices are even directly related to early writing traditions.