An ambitious vision of a city built from lava

I can't imagine the safety risks to this approach compared to classic materials like concrete.

It seems to assume flow fields never happen in the same place twice, for one.

I admit I really enjoyed reading about the ideas though.

Wet concrete is already pretty nasty stuff if it gets on the skin, though.

>Wet concrete is already pretty nasty stuff if it gets on the skin, though.

Only in the most "condo to cube and back" frame of reference. Yeah it can chemical burn you, a little but it takes some serious exposure. Of all the chemicals on a construction site that make internet comment sections act like chicken little concrete is probably one of the most mild.

Creating/excavating lava molds at world scale seems like it could release more CO2 than the cement/concrete processing.

And because capitalism, we would eventually have artificial volcanoes spewing volcanic gases into the atmosphere.

Real life version of Minecraft lava casts?