Optimize for endurance and resilience

Navigate continuous pace and intensity, optimizing your own energy levels to sustain momentum for the long-term.

Back to the universal principles

Calibration

Under, just right, over.

Situation	Under	Just Right	Over
A week of late nights	Treats the late nights as the plan for the next month.	Finishes the spike, then cuts the following week's load so the team can sustain the pace.	Cancels the spike entirely and calls rest a strategy while the commitment slips with no warning.
Energy before a long push	Starts the push already depleted and hopes intensity will appear.	Clears the calendar, says how long the push is, and protects sleep and one real stop.	Prepares so carefully that the push never starts.
Every urgent thread	Says yes to each one and the long-term work dies in the noise.	Takes the urgent thread that truly cannot wait and names the ones that will wait until next week.	Refuses every urgent thread to protect a plan, including the one that would stop the team.
Recovery after a spike	Schedules the next spike on top of the last one.	Puts recovery on the calendar and uses it, then returns to a pace you can repeat.	Takes a recovery so long that the team loses the momentum the spike created.
Intensity that is theater	Looks busy and does not manage the energy the work will actually take.	Matches effort to the real duration of the work, not to how urgent the room sounds.	Polices other people's hours as a substitute for your own pace.
Your own energy	Ignores the slump and makes worse decisions as the week goes on.	Notices the slump, changes the order of the work, and asks for help on the piece that can move.	Makes the team's pace revolve around your energy and calls that sustainability.

Further reading

Sources and essays on this principle.

Life at Arm
The published wording of this principle, under the 10x Mindset.
arm.com
Arm Company
The mission and company context this principle is meant to serve.
arm.com