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Too Fast To Think: What Sloths Teach Us About Mental Fatigue
Description
A homemade billy cart hurtles downhill through a suburban intersection. A keynote slide turns into an entirely new workshop framework. A conference room applauds the removal of friction from modern work. Somewhere in Costa Rica, a sloth hangs completely still above a parked car while a group of humans walk straight past it.
None of these things seem connected.
Until they do.
Because mental fatigue isn't always about doing too much. Sometimes it's what happens when everything keeps inviting your attention, energy and response, while we've quietly removed many of the natural stopping cues that used to regulate us. Waiting. Friction. Pause points. The moments where thinking had time to catch up with momentum.
And perhaps some of what we experience as mental fatigue is the cost of that constant activation.
Using a biomimicry lens, Pia explores what sloths are actually optimised for - conserving energy, reducing unnecessary movement, and being highly selective about when effort is worth the cost.
Not as metaphor.
As biological strategy.
Because maybe intelligence isn’t just about how quickly you move anymore.
Maybe it’s about knowing when to pause.
Nature owns the patent. We get to copy it.
Biology: Sloths conserve energy through exceptionally slow metabolisms, camouflage, and specialised low-movement survival strategies.
Principle: Build systems that reduce unnecessary activation and make stability the default rather than relying on constant active effort.
Application: Reframing how humans design attention, work, and decision-making systems, to mitigate mental fatigue in environments increasingly optimised for constant responsiveness and escalation.
S2E09
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Created and hosted by Pia Williams
Clever by Nature. Feral by Design.