It's not uncommon for representations to require some re-thinking as the amount of data you're representing grows. If you have single values that require almost a megabyte of direct field storage (ignoring any string/array/dictionary content), you may have outgrown the practical limits of inline storage, just like having ten million elements in a list means you may have outgrown Swift.Array. Consider whether you can use copy-on-write types internally in order to improve sharing between copies (or near-copies) of the same value.
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