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Private soil farming is a great business model. Low cost, high demand. With fewer chemicals and wider practice, the trade will be more sustainable.
More houses will be 3D printed — and smaller — in the future.
The internal combustion engine is the largest technological mis-step in human history.
I think components being 3d printed is more likely. It's pretty hard to do cookie cutter complex objects like apartment buildings and family homes. Things like bricks, supports, ducts, pipes, insulation are much more adaptable. I think a hot take of mine is that 3d printing isn't gonna be the next big thing in construction and manufacturing. There's really sophisticated and efficient methods of doing those things on an industrial scale now that I don't see 3d printers matching. I do think 3d printers will play a bigger role for personal use. Having a tool that could print out many different household objects just for one person seems useful. Things like toothbrushes, housing components for electronics, ceramics like plates and glasses.