Fixed rate lending onchain is overdue, and Midnight moving this way matters. One distinction TradFi spent decades learning, and it is easy to miss here that a fixed rate loan and a fixed rate are not the same product. One is a lender committing principal at a fixed coupon for a term which is the bond market. The other is leaving your floating loan where it is and buying rate certainty from a separate party who is paid to carry it. What makes the second work is that the rate can be separated from the funding without moving the principal. A treasurer with a floating loan rarely refinances into a fixed one. They keep the loan and add the swap, and the two together behave like a fixed rate loan. Midnight is building the first onchain. IRIS sits on the second side, but it is not a rate swap. It takes the one idea underneath the swap, that the rate can be unbundled from the funding and carried by someone else, and delivers it a different way. The borrower keeps drawing from the deepest liquidity onchain, even Midnight itself, and a solver underwrites the outcome on top. Swap-like, but not a swap. More on why that difference is the whole point soon.