This is a sincere question, please don't shoot me
Usually I don't like all the posts about "slow progress"...
I think that a lot of people don't understand that the construction of the base is the most complicated part in a construction of a skyscraper, and therefore it is normal that it takes a lot of time (And after that it should rise much faster)
However, I read that 200-300 Workers are working on the same time at 4WTC, I guess that it is the same for 1WTC.
If so, I have to ask, isn't installation of one perimeter column and several smaller columns for a day is somehow very little for 300 workers?