[djf]

It doesn’t really matter what it’s expanding into. It’s a conceptual framework. A trick of open versus closed spaces, in a mathematical sense.

The entire concept of gravity as something that “pulls” mass together is being shown to be wrong. Backwards.

Empty space as we seem to know it is actually the most dense part of the universe. It’s compacted and compressed, under enormous pressure,

What we call “mass” is the least dense part. It gets pushed together (or better said towards each other) by the “empty” space.

Just like bubbles rising in a beer. It’s a kind of surface tension in three dimensions.

Sakharov was right.

The big bang didn’t “happen”. The big bang is happening.

[rottndog]

The big bang didn’t “happen”. The big bang is happening.

So how can they say with any certainty that at at some point the expansion of the universe won't slow and reverse, and then the universe collapse back in on itself?

[hosepipe]

[ The big bang didn’t “happen”. The big bang is happening. ]

IF eternity future is possible, why not, eternity PAST?....
Linear time may be a limited concept..
i.e. in the box thinking..

[rottndog]

Empty space as we seem to know it is actually the most dense part of the universe. It’s compacted and compressed, under enormous pressure,

I'm curious about this...if 'empty space' is compacted and compressed, it isn't really empty then...is it? IOW, what has been compacted and compressed?