I like to explore lemmy. Sort by "Top Last Hour" and with "All Communities" to find something you like. I am subscribed to about one hundred communities so far :3
Even if you could print a lot of different materials: A modern car is uncredibly complicated and I'd even take a good enigneer months to fabricate something that does not kill you or others on its first drive. So I guess it won't happen. What I could imagine however is decentralized and more local manufacturing of cars. One company may licence their design, it gets assembled remotely at several places and an engineer has a look before you get it.
I don't have a google account. You can find the RSS feed of channels you like in their accounts sites source code and just use a feedreader (I can recommend feedbro) to follow them. Also: Use sponsorblock in addition to your normal adblocker. Shorts I skip, music I listen to from other sources.
I like to explore lemmy. Sort by "Top Last Hour" and with "All Communities" to find something you like. I am subscribed to about one hundred communities so far :3