" Well, there was a reason it always seemed to work, Shaunak said. The image on the computer screen showing the blood flowing through the cartridge and settling into the little wells was real. But you never knew whether you were going to get a result or not. So they’d recorded a result from one of the times it worked. It was that recorded result that was displayed at the end of each demo. "

― John Carreyrou , Bad Blood: Secrets and Lies in a Silicon Valley Startup