FreeCAD is excellent. The learning curve is steep, especially so if you are coming from a proprietary CAD software... But once you find a workflow that works for you, it is incredible for parts for 3D printing and lasercut panels, with no licence hassles.
#bookstr A Deepness in the Sky by Vernor Vinge is excellent --grand sci-fi with libertarian themes.
Yes, but ones purchasing power increases over time. People aren't going to stop eating, or buying items that they value/need/desire. As far as I'm concerned, this is the main inventive that turns humanity from mindless consumption and creates the incentive to take purchasing decisions more seriously. Economic activity may slow, but that which remains will be far more productive, add more value to humanity and reduce the entropy (waste) found in the current system.
What would it take to get Marty Jones into Ham Radio for Bitcoin?
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https://youtube.com/playlist?list=PLZpc6PnzmzmHfXxqeluz6q-rYCElhMuZa
https://www.youtube.com/watch?v=cFhHD64w2wM
A video of NVK relaying a signed BTC transaction to an operator on the other side of the country while confirming the transaction is in the mempool with a satellite --without a local internet connection?