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Margin of safety or antifragility?
A margin of safety adds buffers so a system absorbs shocks. Antifragility designs systems and teams that improve because of shocks. One protects against stress; the other puts it to use.
Margin of Safety
Build in buffer for what you can't predict. The future is usually worse than the plan.
Reach for it when
- Failures are costly or irreversible
- Load and demand are hard to predict
Antifragility and Chaos Engineering
Some systems get stronger from stress. Inject failure deliberately to find weaknesses before they find you.
Reach for it when
- You can learn from small, safe failures, such as chaos experiments
- The environment changes faster than you can forecast it
Together
Buffers keep stress survivable; regular, deliberate practice turns it into learning.