So why have we stopped building pyramids for thousands of years? We have the technology and knowledge to do it, so where are all the new pyramids? And no, that Las Vegas monstrosity doesn't count.

You might be surprised to learn that not all challenges are purely technological. The biggest challenges with such megaprojects are political, economical, and social. A Wikipedia clone is completely worthless if nobody is willing to contribute - it would just be an empty database!

I agree, but I think the reason why we don't build pyramids today is because it would be a huge waste of resources. I guess you don't think much of Las Vegas-- me neither-- but the sphere is pretty darn impressive. There are all kinds of examples around the world with amazing architecture. The Hoover dam, the Golden Gate bridge, etc. If the Egyptians could have done these things they would probably not have built pyramids.

As an aside. When the Eifel Tower was built it was considered tacky by many and assumed to be temporary. Maybe some of the most remembered things of our time will be taken for granted. Maybe some huge data center will be a museum.

But we didn't. Templo Mayor might be among the last big Pyramids humans have built. The Aztecs kept working on it until 1520.

> And no, that Las Vegas monstrosity doesn't count.

Why doesn't it? The owner isn't buried in it?

> The biggest challenges with such megaprojects are political, economical, and social

Indeed; this is why we moved on from piling rocks in a formation that didn't fall down easily, and put all those things you list into cathederals, hydroelectric dams, the Apollo missions, etc.

its demand, right? There's very little demand for new pyramids. The people with the capital have better things to do

Nobody wants a real pyramid

I guess it is because pyramids were built at a time of tyrranical supreme leaders with 100% of power and wealth concentrated in themselves. That and fashion

There are lots of pyramids around the world.... for example the one in the Louvre, or Memphis, TN and so on...

> A Wikipedia clone is completely worthless if nobody is willing to contribute - it would just be an empty database!

Isn't that the point of TFA and this whole conversation?