I must agree with the potential harm of increased false positives but I am not sure if this is the real issue here. In a short period of time, it is impossible

I must agree with the potential harm of increased false positives but I am not sure if this is the real issue here. In a short period of time, it is impossible to accurately analyze heart trends to find AFib. I mean, people might feel that everything is okay when it's not (false negatives ARE problematic), which can be only determined in full 24h+ / 12-lead ECG scan. However, 20-30s ECG monitoring is still adequate to gather information about some of the disabilities of the user's heart (for example, if any ventricle is damaged). When we were bootstrapping with a similar idea as Apple Watch at Aidlab, all cardiologist were looking at us like we were crazy. Well, seems we were talking with wrong doctors, and we should go straight to Dr. Ivor Benjamin.