12-01-2026, 07:32 AM
Nice overview, thanks Stolfi – I hope I'm allowed to use it in another thread of mine.
I would define it as follows: These are two different classes.
On the left side, there seem to be functional tubes, while on the right side, there seem to be vessels. However, within these two classes, one can see a development.
I would like to point out once again that the left-hand class of tubes is characterised by the ability that (theoretically) almost all of them could be inserted into one another.
This is not possible with the vessels on the right-hand side – these seem to be more for storage.
I do not know whether the ones on the left were intended to be inserted into each other. But it is an interpretable criterion that can at least define the difference between the two classes of objects depicted.
I would define it as follows: These are two different classes.
On the left side, there seem to be functional tubes, while on the right side, there seem to be vessels. However, within these two classes, one can see a development.
I would like to point out once again that the left-hand class of tubes is characterised by the ability that (theoretically) almost all of them could be inserted into one another.
This is not possible with the vessels on the right-hand side – these seem to be more for storage.
I do not know whether the ones on the left were intended to be inserted into each other. But it is an interpretable criterion that can at least define the difference between the two classes of objects depicted.