I also find the claim he wouldn't be able to use a 3D printer ludicrous. Does he think he's better than Michelangelo?

Anyway, back when Stone Age tech was the best way we had to do things, there were a lot fewer people to feed. While we're feeding ~8B people using what is basically Stone Age technology today, there are a lot of problems coming from that continuation of such primitive methods. We need to use aquaponics to eliminate biocides, habitat loss, waste, and, perhaps most important, parasitic losses. That last is the reason we are still using Stone Age tech to feed the world. The parasitic losses are the only way parasites gain wealth and power. Overlords are the parasites we need to eliminate.

3D printers are one part of the switch to aquaponics, because individuals with 3D printers can make almost every part of an aquaponics system that will feed them for the rest of their life. Maybe today entry level 3D printers can't make LEDs or the pump for feeding the plants the waste from the aquarium, but those are temporary limitations on the technology.

The neat thing about decentralized means of production is that they scale down better than they scale up. Overlords cannot benefit from them as much as we can. Today is the very peak of centralization of industry, and of the parasitic losses we suffer to our enemies. Every passing day increases the dispersal and development of decentralized means of production, and decreases the flow of wealth to overlords.

If we go backwards technologically we prevent that ongoing transition to an overlord-free world, maintaining centralization and our subjugation to overlords, extending it longer with every step backwards we take. The way out of the trap we are in is forward, straight to the stars.

Can you imagine any limit on the wealth and freedom our sons and daughters will have when they can print their own spaceships, use the resources on any or every star system they find, go anywhere, and do anything they want?

A month ago today the very first 3D printed spaceship was launched. I think that is one of the most significant events in human history, the beginning of the quest to fulfill our destiny: to bring abundant life to infinite barren wastes, to seize the stars of the heavens and illimitable resources free for the taking, to create of them inconceivable wealth, in absolute freedom; to craft with our own hands unimaginable felicity and enjoy it in our good company, forever.