There's nothing wrong with a plan, but remember Von Moltke's famous dictum that no plan survives first contact with the enemy. The danger is a plan that seduces us into thinking failure is impossible and adaptation is unnecessary - a kind of ‘Titanic' plan, unsinkable (until it hits the iceberg).

Success Comes Through Rapidly Fixing our Mistakes Rather than Getting Things Right the First Time.

If the whole process of learning from failure means discarding stuff that's not working, but in fact, our natural reaction is to keep going, to throw more money behind it, to throw more emotional energy behind it... that's a real problem.

Failure is inevitable; it happens all the time in a complex economy.

Loss aversion is a really disproportionate anxiety about stuff that doesn't matter very much. So for instance, if you lose $5, you feel really bad about the $5 you've lost. You're cursing yourself. You're going through it again and again. If, on the other hand, you find $5, you go - hey, great, five bucks. And you've forgotten about it really quickly.

I am aiming my books at anybody with no economics background.

Each additional child that you have is going to divide your time and your attention. You're going to have to cram them into a smaller house. They're going to have to share rooms, or you might have to move into the suburbs, somewhere cheaper, further away from where the job is.