[ExI] Why Haven’t Alien Machines Eaten the Universe Yet?

[BillK]

On Thu, 11 Jun 2026 at 12:02, John Clark via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
>
> On Thu, Jun 11, 2026 at 1:03 AM sjatkins via extropy-chat <extropy-chat at lists.extropy.org> wrote:
> >They found much more interesting thing to do than "eating the universe".  Obviously.
>
> Every single one of them? No exceptions? That's astronomically unlikely.
> John K Clark
> _______________________________________________


Aliens might exist. But there are three reasons why they’re not visiting us
Published: June 12, 2026
Author Carol Oliver
Professor in Science Communication and Astrobiology, UNSW Sydney

<https://theconversation.com/aliens-might-exist-but-there-are-three-reasons-why-theyre-not-visiting-us-283984>
Quotes:
Space is big – very big
To begin with, space is vast – beyond our imagination.

Unimaginably high energy requirements
Then there’s the unimaginably high energy requirement for interstellar travel.

A unique biosphere
Yet another issue is our biosphere, unique to Earth as far as scientists know.
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