No fooling of physics involved at all. A bullet is less sharp then a needle, it's about momentum and impact area among a whole bunch of other things, it may appear that the physics have been fooled, but only you're perception and understanding of the underlying physics is fool-able.
AH Indeed. Momentum x mass surely my buddy vulcan6gun can explain this by , say, caliber and feet per second.
9 mils pass right thru where as .40 and .45 knock you on your back side. A weak analogy but never the less accurate.
Twisters drive 2x4's thru walls only if the narrow end strikes the wall, long sides damage the wall but fall victim to the mass of the wall. Pretty simple stuff.
A paper spitball would have to be wrapped extremely tight increasing it's mass before it can maintain enough momentum to pass through a rock.
I don't recall any straw through telephone poles at the WTC site. Cole