It would be great if we were shown exactly what forces were acting on which places with how much strength. Although that's kinda complicated. Maybe just show the weights of each truss.
Ech, the more the flash physics engine is computing at once, the slower it computes, the less accurately it computes physics.
I.E. More stuff on-screen CHANGES results of previously A-OK structures.
This game is a pile of suck.
There is no way to lose, i.e. no challenge.
Even though I approve of the message it sends, it's a terrible game. Also: what difference does it make what color I use for thermal paint? So they look pretty? Whatever.
You know those materials you're buying so much of? Made with slave labor. In a smoke factory. Suck.
For all those people who are saying the "Unrebuildable barricade" bit is a bug, the answer is No. That skeleton thing that makes the screaming noise when it spawns runs into the barricade and blows itself up.