The known universe was 13.7 billion years old until a couple years ago. Either way, we're still talking +/- tens of millions of years with 68% confidence. At 95

The known universe was 13.7 billion years old until a couple years ago. Either way, we're still talking +/- tens of millions of years with 68% confidence. At 95%, the interval is something closer to a billion years. Unless they've tightened it up since I last read about it when the 13.8 figure came out...