Sometimes we take umbrage at what people say, even though what they said was completely inoffensive. Perhaps the encounter has triggered some trauma from our past. In such cases, we are not really dealing with the reality before us, but with demons from our own mind.
What if you could load an app on your phone that would record and map your emotional response to various things that people said to you? Eventually, as technology advances, such an app could measure such things as facial expression, vocal timbre, heart rate, blood pressure, skin conductivity, posture, pupil dilation and gaze saccades, to name just some of the many physiological indicators of mood.
With this data, your app could correlate your emotional responses with the objective reality of what was actually said to you. It could then search for and highlight discrepancies between input and response.
The resulting analysis could help you to better understand your own emotional responses, and perhaps to modify them over time. You might end up living a happier and less needlessly stressful life.
I wonder whether such an app would be popular.

