[ExI] Reversible computing (Was: Re: ET Emergence (Was Re: Uploads as a group of AI agents))

[Adrian Tymes]

On Wed, Apr 1, 2026 at 8:11 AM John Clark via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
> With careful design the Casimir force can be shaped, for example if you use a dielectric material instead of a conductive metal the attraction is greatly reduced,  and if you put a fluid with carefully designed dielectric properties between the plates you can even get a force of repulsion instead of attraction. You could use Casimir to keep two parts in your nanomachine precisely aligned without contact, and then you could make a no contact no wear bearing that would operate similar to the way magnetic levitation does but by using quantum vacuum forces instead of magnetism.

How would this work?  If you just had two surfaces near each other,
they would attract.  If you had a part balanced between two others, if
it got out of alignment, it would be exponentially more attracted
toward the one it was nearer - but for alignment, wouldn't you need it
to be more attracted to the one it is further away from, so it is most
(net) attracted to the equilibrium point?