[smj-edison]

It reminds me of how Sussman talked about someday we'd have computers so small and cheap that we'd mix dozens in our concrete and be put throughout our space.

[slow_typist]

Russia started with mixing diodes into concrete a while ago- https://news.ycombinator.com/item?id=41933979

[progbits]

A Deepness in the Sky by Vinge has this as a minor plot point.