Architectural Titanium Last week I was banging on about the virtues of titanium and how it’s such a shame that we still haven’t freed this abundant metal from the expensive Kroll process. Quick reminder: Titanium has the highest strength to weight ratio of all elemental metals, it does not corrode, it’s super-non-toxic for humans (think surgical implants), and it’s one of the most abundant elements on Earth. There’s also a lot of funky alloys like Nitinol (another post from last week), that would allow architects to design dynamic living structures that morph to life at sunrise. In 2025 we should be good at titanium by now, and we should be building glorious biomorphic architecture with it. This is one of the saddest gaps in humanity’s 21C tech tree. We’re still living in urban buildings that age and rot, none of this era’s buildings will remain 200 years from now.