First, the National Institute of Standards and Technology already implicitly admitted that WTC7 was demolisehed in their report which describes how the building collapse featured 2.25 seconds of freefall with no internal structural resistance.

Free fall acceleration for approximately 8 stories or 32.0m (105 ft). Free fall acceleration means that there was no resistance encountered while the top of the building when through the space where 8 floors of reinforced concrete stood just seconds before. We are talking about a building with had 58 perimeter columns and 25 core columns. And yet, 8 floors of that somehow disappeared almost instantly. If you read the full report, you will see that NIST does admit this, but never recognizes the implications of this fact. In fact, under a separate section entitled “HYPOTHETICAL BLAST SCENARIOS” NIST specifically excludes any controlled demolition based on the completely wrong assumptions that no blasts were heard (they were, of course).

Second, there were plenty of explosions reported. You can even hear them yourself on the various videos from the day. You can hear the firemen talk about them. If you haven't heard them, or heard the testimony of eyewitnesses talking about them., you obviously haven't even gone to the trouble of a single Google search for them.

There. there is no doubt about what happened to WTC-7 whatsoever. It was intentionally demolished with preset explosives.

CRAIG BARTMER NYPD: "I walked around it (Building 7). I saw a hole. I didn't see a hole bad enough to knock a building down, though. Yeah there was definitely fire in the building, but I didn't hear any... I didn't hear any creaking, or... I didn't hear any indication that it was going to come down. And all of a sudden the radios exploded and everyone started screaming 'get away, get away, get away from it!'... It was at that moment... I looked up, and it was nothing I would ever imagine seeing in my life. The thing started pealing in on itself... Somebody grabbed my shoulder and I started running, and the shit's hitting the ground behind me, and the whole time you're hearing "boom, boom, boom, boom, boom." I think I know an explosion when I hear it..."

In addition to hearing the sound of the explosions, you can also hear firefighters and police telling each other to move back because the building is going to be blown. This was live on CNN. It's one thing to be skeptical, it is another to deny a) eyewitnesses, b) video evidence, c) physics, and d) logic.