You're learning.
You know what I find interesting? In 1930, it took us 1 year and 45 days to build the empire state building.
85 years later, with all the advancement in technology and machine equipment, it will take us 12 years to build the replacement towers.
Just another example of government making things better. Imagine if we could combine our technology advancements with a true free market.
Sturg makes a great point. It's quite a huge difference when you can throw thousands of workers making very little money at a project and when you have to pay people a fair wage.
Also you're massively ignoring the difference in the structures, ESB was built relatively quickly with a ton of concrete. You're also ignoring the intent of each building as the ESB was built quickly because of races to see what city had the biggest dick errr building between NYC and Chicago. One WTC was built with a billion things in mind, including protection, Environmental impact, etc.
You're right, that government was a big part of the slowdown of One WTC, but considering what it slowed down I don't think it's a bad thing. Is it a bad thing to do environmental impact studies before construction? Honestly?
Also realize that post WWII (aka the time when we've had the most government spending) we've had the greatest increase in technology since who knows when? We went from biplanes and trains for war between WWI and WW2 and jets, helicopters, and all kinds of tanks and APC vehicles that weren't even remotely conceived. We went from not having jets to landing on the moon in 20 years. Mostly thanks to a **** ton of government spending by USA, USSR, and Germany. Government spending is what brought us Google, microwaves, GPS, hell the internet, baby formula, the bar code, the microchip, the capacitive touch screen, vaccines, and many more things that were funded on the government's dime. Those things probably don't exist in the free market or at least don't exist as we use them today.