There are 8 options and having two nodes seems like there are 4 ways to draw arrows between them.
Didn’t say it was just arrows! You can also put corresponds-to signs between them as e.g. panpyschism does, and then there are two ways to reduce it to a one-node diagram. (Also there are 7 options.)
Didn’t say it was just arrows! You can also put corresponds-to signs between them as e.g. panpyschism does, and then there are two ways to reduce it to a one-node diagram. (Also there are 7 options.)
The direction would seem to me something that would require even more interpretation and be more ambigious.