Pretty much. See Nanosystems, linked in another comment, for a technical treatment. Its logic design used sliding rods, so friction could be more of an issue, e

Pretty much. See Nanosystems, linked in another comment, for a technical treatment. Its logic design used sliding rods, so friction could be more of an issue, especially if you can't make it atomically precise. (With atomic precision you could design the surfaces for https://en.wikipedia.org/wiki/Superlubricity https://en.wikipedia.org/wiki/Superlubricity) Quick intro here: http://www.halfbakedmaker.org/blog/58 http://www.halfbakedmaker.org/blog/58 Merkle wrote a later paper on a different approach, buckling-spring logic: http://www.zyvex.com/nanotech/mechano.html http://www.zyvex.com/nanotech/mechano.html I'm not sure how this latest design is supposed to be better still. I haven't really dug into either of them. BTW this is the same Merkle who's always getting mentioned in blockchain articles.