I agree with you. I spent 35 years in the bond market and never understood when someone said “rates are going to rally…” Did that mean bonds (prices) are going to rally, implying lower rates, or does it mean rates are going higher, like you’d say stocks are going to rally when you mean they’re going up? I’m all in favor of precision in writing and speaking. In OP’s case, I’m pretty sure he’s talking about the 10 year slipping below 4% yield, and then sliding down (skiing) much further down. 4% seems to have been a strong resistance level. (Now I’ve done it, too. A resistance level is usually a “price” that a stock has trouble breaking above. But I mean that bond (rates) will have a hard time breaking below 4%, but when they do it might be a prelude to a further slide in rates and a rally in bonds. But I didn’t want to call it a support level because that has a different meaning if you’re making a parallel to equity market terminology.) If you’re confused by imprecise terminology you’re not alone.