What I Ate

The room is filled with ancient dates, Where I've been and what I ate. Before I'm asked to throw them out, I play with every little doubt.

An attempt at tracking correlation between geography and happiness.

Q: So, how is the happiness variable plotted?

A: It isn't.

Q: Isn't happiness an important part of correlating happiness and location? Why was it excluded?

A: It was difficult to collect enough data.

Q: Why was it difficult to collect data?

A: Being asked about your happiness every few hours has side effects.