I followed the non-government analyses for 10 years after. Basically it was all conventional technology:

1. Israeli teams wired explosives in the towers prior to the events. The official building photographer was barred from access to the buildings during this period, and he wrote about that.
2. Special military nukes were placed in the subsubbasements where they could blow straight up the shafts. These were dial-a-nukes, devices having special properties to produce reduce isotopes and less detectable lasting radiation, and ability to emit high energy radiation absorbable by steel. However, 1) some of the blast in the two subsubbasements also travelled through the tunnels and pipes in the complex, to other buildings (sort of like pumping into the sewers) and this was detected afterward, and 2) some of the bomb energy emission also escaped via 'windows' between building structures nearby, and went to nearby streets where it was also absorbed by auto steel bodies. This resulted in the peculiar phenomenon where auto paint was burned off when the steel 'flash heated', and rubber in contact was melted, while at the same time no nearby carbon-based material like newspapers got hot at all and did not burn (there are photos of this and it was puzzling at the time), and

3. elevated tritium levels were detected in the area afterwards, and firefighters developed cancer 10 years later and longer. Those elevated levels are not natural and had to come from a nuke. Also, underground steel which had absorbed the X-ray energy stayed glowing hot for weeks, insulated by the dirt, and was found during excavation. This foundation steel had absorbed radiation that went sideways at underground level from the bombs.

The use of the dial-a-nukes means one thing: elements of the US military were involved because these devices are locked down tighter than a bull's ass in fly time. But I note that sometime back then they caught an attempt to steal nukes from a base, done by insiders. Real nukes were loaded on aircraft instead of dummies. Probably not accidentally. Some general got his ass roasted over it. So, theft is possible by traitors.

4. Pentagon was hit by a UAV. I have FEMA photos of the debris and I spotted a turbine wheel that came from a smaller aircraft, and I knew right away the official story was BS. It was a drone painted to look like a passenger jet. A TV news producer I knew told me he knew the area geography and because it has a 'rim' of sorts that a passenger jet could not have made a deep dive and level out, it had to be a smaller vehicle. His opinion was a UAV; no released security footage from anywhere, very suspicious, FBI confiscated the gas station video. The same corrupt FBI we still have.

All in all though, there were no magic holograms or satellite beams. It was all conventional items, prepared to act in unison when the jet crashes then provided a mask for action. Seismographs showed activity like the bomb ignitions right after the crash but the wired support beam-explosives and basement bombs could not be triggered until the jets hit. The Pentagon UAV targeted the offices where records of the now-lost unaccounted for trillions were; no accident where it hit.

Finally, I worked for a security industry firm afterward that had access to New York Port Authority records and I know that they knew it was bombs. In the after years they installed X-ray machines at truck entrances under the new towers in order to scan trucks to prevent nukes from being trucked in as was done for the original towers. They KNEW what had been pulled off.