What once kept an unread claim distinct from an empty register was a spare of two thousandths of a kelvin. The spare is spent. Claim and vacancy return one cold digit. After the long cooling, an unkept promise and no promise are the same entry.
“A forgotten warrant stays separate from blank only if 0.002 kelvin remains free to fund one bit. Margin on hand is 4e-5 kelvin, first digit soft. Under it, mark and blank occupy one state. Separation was the heat; the heat is now background.”