It’s hard to miss the headlines about the Federal Reserve’s benchmark interest rate hike – a full three-quarters of a percentage point, the biggest increase in 28 years. So what does that mean for mortgages? While it’s true that efforts to tame inflation by increasing the short term lending rates affects everything from credit card borrowing and car loans to, yes mortgages, it’s not as straightforward as many people assume, especially where 30 year fixed mortgages are concerned. The Fed’s …