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This figure is a graph: the x-axis is labelled ‘computational difficulty’ (from low at the left to high to the right) and the y-axis is labelled ‘emotional involement’ (low at the bottom and high at the top). In the top half of the graph is a circle with a heading ‘soft complexity’. To the left of that is the text ‘smaller-scale ‘personal problems’ e.g. divorce, career, choices’. To the right of that is the text ‘larger-scale ‘organisational problems’ e.g. bankruptcy of a financial institution, planning and building a new motoroway’. This text is also in a circle labelled ‘hard complexity’. Also in this circle is the text ‘complicated mathematical tasks e.g. chess, applying chemical processes’. Sitting outside of the two circles, and in the bottom left of the graph is the text ‘simple mathematical tasks e.g. puzzles’.