The expense comes from the uncertainty. How do you know if you did everything exactly right? You have to hire an expert. This comes up in a lot of domains. Peop

The expense comes from the uncertainty. How do you know if you did everything exactly right? You have to hire an expert. This comes up in a lot of domains. People say just read document X, Y, and Z; but when you go to do that it's not always clear exactly what they documents mean.