Actually why not take the amount of dark energy required to expand space within our Hubble bubble (cool term; hey? you heard it here first) and set your expansion of bodies like the earth to match the ammount of energy in mass (E=mc^2). Then at least your accounting will look neater. And you will be saying that expansion is a payback of energy borrowed to make mass. Which reminds me of an ATM I need to raise.

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