No Promises

We love guarantees. Reducing risk when purchasing a new car or trying out a new gym is a deal-sealer for many people because it means you can jump headfirst into the pool, but pull yourself back out, dry as when you started, should you find the temperature is not to your liking, depth is not ideal, or the chlorination levels are too high.

We also like to follow instructions that guarantee certain results. Try this diet — you’ll lose 20 pounds, guaranteed. Try this philosophy — you’ll be way mo...