histotripsy

The Knife That Isn't

I was reviewing overnight vitals when Ravi knocked on my office door — two quick raps, which in our shared shorthand means good news that still needs your skepticism. He had a tightbeam packet from Earth. Thirty-eight years old, as always. But what it described was new enough to make me set down my coffee. Somewhere on Earth, around the time our children were learning to walk on Kadmiel soil, a company called HistoSonics had built a machine that destroys tumors with sound. No incision. No radia