> The rust is essential to bind it to the cement What? This is total nonsense. > Modern concrete isn't expected or designed to last more than a century. It co

> The rust is essential to bind it to the cement What? This is total nonsense. > Modern concrete isn't expected or designed to last more than a century. It could have been made to last longer, if they wanted, but that would cost a little more. Is hacker news a conspiracy theory website now? > We have a very great deal of infrastructure that will fail on a predictable schedule Wood rots in a few years under certain conditions and can last hundreds in others. Concrete works similarly. The 3rd pantheon is currently standing, but it is a huge mix of repairs across centuries. The Romans built many structures that are similar but now are in ruins because the Catholics didn’t maintain the roofs on bathhouses.