Hi, do you actually read anything?
The large quantity of explosives senario is A DIRECT RESULT OF THE CONTENTIONS OF THE TM.
I addressed your contention of thermite(why are you now changing the story you started with in this thread?---again)
Thermite is unreliable as far as timing goes. It is also unreliable in causing a quick and accuratecutting of large cross section , vertical columns. Thermite also has its own markers. First of all the amount required to significantly weaken, let alone cut through a thick, vertical column is quite large. YOUR contention is that little material would have to be smuggled in in the preceeding few days(or a year if bomb sniffing dogs are as useless as you wish them to be). Thermite would also absolutly have to be mounted ON the columns. Your contention previous to this page was that this was not neccessary(since you would have to explain how this was accomplished).
The show "MYTHBUSTERS" placed 2000 pounds of thermite on a car and it failed to sever the car into two pieces. That thermite was placed on top of the car. Your contention requires the cutting , horizontally, of a vertical column and an amount of metal similar to that of the car in the TV show.
Even if, somehow, the MIB managed to get a 50% better efficiency in using thermite on the coilumns of the WTC structures than Mythbusters had with the automobile, it would require the placing of 1000 pounds of thermite on every column they wished to sever.
Thermite also takes quite a bit of time to do its job and if it is placed on several columns it is impossible to time them to act in co-ordination.
WTC 7 fell victim to several things that contributed to its demise.
First it had fires on several floors,,,
,,,it also had no fire fighting action ,,,
,, it also was built with not only long span floorspaces (similar to the towers) but the construction had the floor beams and girders assymettrically placed,,,
,,,this led to thermal expansion that caused the floor beams to push a girder off its column seat,,,a situation that is resisted by structures in which the beams are symettrically placed.
(Why are you now changing the topic to WTC 7?)