If you don't like to read:
So the bitcoin ledger is a debt "the public bitcoin system" owes to each "creditor" (bitcoin holders). It's a pretty good analogy except the tally sticks were not limited in supply.
No, that's not a very good analogy. For the concept of debtor and creditor to make sense, the bitcoin system would have to be an entity that is capable of making a decision to withold the credit or re-sell the debt. It also implies a contract between the system and the users to allow access to them and only them, which is not the case.