" ... Any EUR that they could place into an individual entity's account would need to come from tax receipts or some kind of loan ..." I think it is, explicitl

" ... Any EUR that they could place into an individual entity's account would need to come from tax receipts or some kind of loan ..." I think it is, explicitly, only the loan that is the source of the EUR in your example. I think MMT suggests this very simple relationship: Money is created by loans and destroyed by taxes. This is unexpected as most people think tax receipts somehow bolster the "account" of the government but what MMT is telling us is that the account has no significance because the government arbitrarily controls it.