“There is nothing in that region of space”

and

“there is nothing outside the universe”

have different meanings.

.

there is nothing except quantum fluctuations in that region of space

= the best detector detects nothing but quantum fluctuations

.

there is nothing outside the universe

= whatever detected, label the whole collection as “the universe”

.

“There is nothing outside the universe” does not (!!!) mean that “we go outside the universe to keep searching, but find nothing”.

— Me@2012-10-15 08:33:01 AM

— Me@2022-11-27 09:09:53 PM

.

.

2022.11.28 Monday (c) All rights reserved by ACHK