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As the world is emerging from waves of Coronavirus infections and facing new threats of virus outbreaks, the scientist in us may ask: how can we model such outbreaks? One common approach is to use so-called “compartmental models”, and in particular the SIR-model. Here, the individuals of the population fall into one of the following three categories: Susceptible, Infected or Recovered.

In summer 2019, right before my final year of undergraduate studies was about to start, I watched the judo world championships with my father. This was the year the International Judo Federation used a 4DREPLAY system for the first time. This system was used to replay the important moments in which players executed successful techniques, from every angle.