It depends on the accuracy and speed. If a dog can detect cancer in a stool sample with 90% accuracy, and the dog can go through 1k+ samples a day, then that so

It depends on the accuracy and speed. If a dog can detect cancer in a stool sample with 90% accuracy, and the dog can go through 1k+ samples a day, then that sounds like a good deal. The value proposition is in high volume and low invasive tests that can reduce the need for slower or more invasive tests. If we could screen everyone for colon cancer from a stool sample with a trained dog, then we could reduce the recommended frequency for a colonoscopy and still catch as much or more cancer. There is a lot of money saved if the average person without colon cancer only needs 1-2 colonoscopies in a lifetime instead of 4-5.