I don't think this is quite right. Most buildings don't get all their design parameters tested in reality. But say when there is an earthquake, and the building collapses and you find that various checks and balances in the design process went wrong. I know here in NZ where we have had a number of significant earthquakes all kinds of known and unknown things have been discovered about buildings, either ones that have ended up killing people or ones which now are condemned because things played out differently than the designers thought they would