We should plan on our plan not going according to plan. The author encourages that in investing, we should plan on room for errors. Oftentimes, we predict our outcomes and get frustrated or disappointed when reality hits us on things that we didn’t think of.

I enjoy the example used of renovation. Most people plan what’s within their budget and their expectations of when the renovation should complete. In reality, renovation often gets delayed due to factors of labour, materials and environmental conditions.

The story of the mice infestation on German tanks was unique. How could anyone think that mice would infect a tank’s insulation covers? The story taught us that we need to allow space for uncertainties to happen and plan to overcome those disasters when it comes. Plan A, then a Plan B, then a Plan C, let experiences teach us.