A house is a good analogy here. You can verify that a house is built to satisfy your dream. You can't likely verify that a house won't collapse in the middle of

A house is a good analogy here. You can verify that a house is built to satisfy your dream. You can't likely verify that a house won't collapse in the middle of the night or during a storm/quake/etc. Once no human understands how the house is built anymore, we will need other ways to verify that or just trust it's done right.