Why I built it

Watch the market for an hour and everything moves at once: rates, oil, a chip maker, a post. So we find an expert to tell us what it means, and a feed built to show us what we expected, or whatever keeps us scrolling. We stare at the middle of the screen and lose the edges.

I began as an equity analyst, after an MBA in finance at IIM Ahmedabad, India's number one business school. Then I left the market and spent decades building things; at Ekrasworks, my own studio, I study how habits form. I also teach with games. In my sales course at IIM Ahmedabad and Ashoka University, students play the contests first and write their reflection notes after.

You have to take an interest in something before it becomes interesting to you.

Give a student a stake in the answer and they listen differently. That stake is risk, and I would rather feed our appetite for it in the open, with a score, than pretend it is not there.

So the Market Daybook is a game. Each question is about the market, and comes with the public source that will settle it and the rule for deciding it. You put a probability on it, 0 to 100, and lock it before you see anyone else's. Once yours is locked, you see how the crowd called it, and the call of a computer program that locked its own before the question opened. When the source settles it, you score. Over time your calls build a record of your judgment.

The daily visit, the score and the glance at what others did are the same hooks a feed uses to keep us distracted and angry. I have pointed them at learning the market on your own terms, with no influencer telling you what to think. And when many of us play, each of us sees, in the calls of others on the same question, what we were not looking at.