Thoughtworks:

Time Sense is a wearable sensory headband which allows the wearer to feel the passing of the 24-hour clock around the circumference of the head. As the day progresses, a tiny heat sensation passes the length of the headband.

This device is an example of an ‘exosense’, an external sensory organ. This means it is designed to be worn and felt consistently, twenty-four hours a day, seven days a week.

For a little while, I had a setting enabled on my Apple Watch that caused a quick haptic alert to occur at the top of each hour. I thought this would help snap me out of situations where I get sidetracked and loose track of time. Well, it did help with that, but I quickly realized that I do not like having such a constant, physical reminder of the passage of time. It was like some terrible combination of a super power and a memento mori.