> all of these concepts become much easier working with "offset from an array" rather than a pointer directly This reminds me of this article [1] that summariz

> all of these concepts become much easier working with "offset from an array" rather than a pointer directly This reminds me of this article [1] that summarizes very nicely several data structures that represent sparse tensors. I highly recommend it if you need to work with data in two dimensions (like a list of vectors) or more. In particular, the Compressed Sparse Fiber is a kind of generalization of the "offset from an array" approach, in several dimensions. That can be handy when working with data in 3D for example. [1] https://arxiv.org/abs/1804.10112 https://arxiv.org/abs/1804.10112