True, we probably could conceivably build the pyramid using modern construction techniques, but I'd like to see someone actually detail how it would be done even with cranes and engines. People assume that if we can build skyscrapers then we could build the pyramid, but the constituent parts of the skyscrapers are many times lighter than the blocks of stone that had to be precisely cut for all the inner construction of the great pyramids.
Essentially, we could conceivably build the devices that could move that weight of stonework, but we don't really have the equipment strong enough for the larger 100-ton and 400-ton blocks used in various temples and pyramids around the world - and it still would not be easy for us to do so as precisely as the original builders did apparently without even using levers and pulleys since those should not have been known at the time.
The thing about the "ancients" (as they're sometimes called) is that they could be pretty practical about things.
For example, the biggest blocks in the pyramids weigh about 80 tonnes! How did they lift 80 tonnes???
Answer; they didn't. The biggest blocks are at the bottom of the structure.
I take my hat off to them for actually moving them from the quarry to the building site, but they weren't fools. Well, except when they were;

But everyone makes mistakes sometimes.
So, Jim, you're saying dinosaurs had iPads? But how would they use them with their wee spindly arms?!
They had Siri?