Vexler draws hope from close sources. Over the years, there were at least three occasions where his father was near death, according to his doctors. Instead, he lived to age 100. About 15 years ago, one of Vexler’s younger brothers received a diagnosis for a different type of blood cancer called multiple myeloma. “He was given, at that point, a 20% chance to live seven years… He’s 75 today, and they say he’s got about 15 more years,” says Vexler. “I have great confidence in science and doctors. I’ve watched my brother’s treatment get better and better and I think, you know, we’re capable of doing those things,” he says.