The force is the same regardless of area. So the pressure goes up when the area decreases. This leads to more flex in the sole which leads to heat.
A stiffer sole will flex less, and therefore transmitt less pressure, and not heat up so much.
@Smallfurry started
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The force is the same regardless of area. So the pressure goes up when the area decreases. This leads to more flex in the sole which leads to heat.
A stiffer sole will flex less, and therefore transmitt less pressure, and not heat up so much.