[ExI] ETs/Aliens

[BillK]

On Wed, 21 Aug 2024 at 16:07, efc--- via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
>
> Well read people know that the solution is of course the crystal spheres.
> Only possible to break from within, impossible to break from the outside.
> _______________________________________________


I am obviously not well-read enough!
I had to look it up -
<https://en.wikipedia.org/wiki/The_Crystal_Spheres>

BillK