[Sombre]

Yeah I'm definitely not convinced we /can't/ reproduce great works of the past, it's just that we /don't/. We produce great works appropriate to our time, like supercomputers, skyscrapers and power stations. Can we make something just like the pyramids? Of course we can. But we won't, because who would ever put all the effort and manpower in? Culturual and societal pressures are entirely different.

That said we could easily make a modern versions of the pyramids by stacking machine made concrete cubes on each other. It wouldn't be impressive like th pyramids are though, because the process involved wouldn't be impressive.