red_admiral 3 days ago

It works fine, but I don't want to be turning that lever by hand forever - have they made sure that it halts at some point?

EDIT1:

"Won't there be a problem with Intellectual Property? No, the Turing machine is a mathematical model and has no Intellectual Property :)"

I love this kind of comment.

  • ZiiS 3 days ago
    • volemo 3 days ago

      Yes; Turing Machine with finite tape can be simulated by a deterministic finite automaton, and we know if those halt or not.

      • YesThatTom2 3 days ago

        If it supported an infinite tape, that would get me closer to my dream of owning an infinite number of legos!

        I love it!

      • FartyMcFarter 2 days ago

        > Yes;

        The question was "have they made sure that it halts at some point?"

        The answer cannot be yes, since some machines never halt.

xg15 3 days ago

OT: I find it interesting that the Technic branch of Lego seems to increasingly separate itself from the rest of the franchise, design-wise - to the point they got rid of the actual bricks!

In older models, there used to be the occasional "flying" section that was built exclusively out of axles, beams and linkages, but the main support structures were still mostly made out of "traditional" Lego bricks (albeit with holes in them).

With recent models, they seem to have made the "flying" style the norm and the standard bricks the exception.

I wonder if this is some indication of Technic becoming its own thing independent of Lego.

(I only noticed the design changes, I have no idea if there are some company politics behind it - but if there is more information I'd be interested to know)

Stem0037 3 days ago

One concern: Given the complexity, I wonder if this might be too niche for a mainstream LEGO release. Maybe it would work better as a specialized educational set?

cosmolev 3 days ago

Can't wait to see DOOM running on this one!

  • layer8 3 days ago

    You’ll have to wait (and crank) quite a bit for the first frame to be output though.

    • sonofhans 3 days ago

      Boy, that’s some “Towers of Hanoi” business, isn’t it? Imagine a monastic group dedicated to this. “Our goal is to use the Lego Turing Machine to render all frames from John Romero’s speedrun of Doom level 1. And then the universe will end.”

      • namaria 2 days ago

        I just realized, that's accelerationism with less steps

    • kmoser 3 days ago

      Just build it in Roblox and let it run by itself!

fifilura 4 days ago

When I was a child, the dream build was the programmable crane from the 8888 Lego Ideas book.

https://rebrickable.com/blog/685/classic-review-technic-idea...

Alas, I did not have enough gear racks to program it.

Thanks to bricklink I eventually got my revenge when I got my own kids.

In general a fantastic book.

  • jrmg 3 days ago

    I loved reading this! Brought back a lot of memories. Thanks for posting.

    • fifilura 3 days ago

      I remember getting help from my grandfather sending a mail to Denmark complaining that the rubber bands in some model broke, and they were not easily replaceable with regular rubber bands.

      So I got a reply back with some new rubber bands along with this book.

      The excavator on the front page was possible to build with my bricks and also a good build.

ape4 3 days ago

(probably explained somewhere but I didn't see it) Is all the logic done with Lego gears!?

  • red_admiral 3 days ago

    Looks like it (as well as Lego bricks, pins etc.). Apparently Lego is Turing-complete.

    • yreg 3 days ago

      That's a bit like saying wood is turing-complete.

cobbaut 3 days ago

Is that a 3D printed Lego gear at 12'40" in the video?

jekude 3 days ago

Does it come with UTM on the tape?

gwbas1c 3 days ago

Meh. Wake me up when it's done booting Linux.

(Joke)

This is awesome!

  • Affric 3 days ago

    RIP.

    Thank god addressable memory.