Why youth hostel showers are like the stock market

Diversity keeps you warm. At least that is true while you're having a shower in youth hostels. If you like, this sums up the research project just published by scientists from the Universities of Fribourg and Bonn. Their result is not as trivial as it sounds. Ultimately it shows that heterogeneity provides stability, whether this is in a shower, in power grids or even on the stock market.

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