It is guaranteed to be contiguous. It might be an array of pointers if you put heap allocated objects in there (like an array of arrays). I think what you inste

It is guaranteed to be contiguous. It might be an array of pointers if you put heap allocated objects in there (like an array of arrays). I think what you instead meant to say is that it's not guaranteed to be stored inline, which yes it is the case that it's only able to be stored inline if `Base.isbits(eltype(A))`, i.e. if it can deduce the bit length of the element type as constant and the objects are allocated to the stack. But of course that's just a requirement for storing values in an array even in C(++) (nice description here: https://stackoverflow.com/a/54654958/1544203 https://stackoverflow.com/a/54654958/1544203), it's just a basic requirement due to having to know the memory size of what is being stored, and so it's not necessarily a limitation of Julia but of all languages.