aggle-rithm
Ardent Formulist
I thought bldgs were desgined to stay upright.
Are you familiar with the term "cost/benefit analysis"? Well, structural engineers weigh the cost of building an indestructible skyscraper with the probability that something disastrous, like a plane crash or an unfought fire, will happen. Because such an eventuality is unlikely, they roll the dice and build it only strong enough to withstand just things as wind, reasonable static and dynamic loads, etc.
It would be especially crazy if they designed it so that, as it tipped over, it maintained it's structural integrity so it would topple like a tree. What in the world would be the use of that?