Disturbing

Now that I'm something like a real engineer, a somewhat troubling thought has occurred to me. All the structures and devices our lifestyles and lives depend on are engineered. At some point in a project, every engineer has to make assumptions and says "Boy, I hope this works." or "I hope this doesn't blow up and kill everyone." These assumptions have varying degrees of validity. I'm becoming familiar with the WAG (wild ass guess). We actually use that as a note on calculating. Sometimes, you have to WAG like a golden retriever on prozac.