It's Official: We Were WRONG About the Big Bang

No, no, no!  If you got this far into the comments, I'd like to point out that there are NO physical real examples of actual infinity - period.  "Potential" infinities are not actual infinities. For example, if you start counting in whole numbers starting at 1, you could potentially continue forever and never reach the end. But as soon as you stop counting, you arrive at a whole number that is not infinity -- far from it. This will be true for anything you can name or imagine. Count up to a google plex to the power of a google plex to the power of a google plex to the power of a google plex -- which would be more atoms in the entire known universe -- yet is still nowhere near infinity. In fact, you haven't even started on the road to infinity. This is because infinity is not a large number. It's a concept and nothing more. Infinity shares the same paradoxical properties as "0."  

The universe cannot  be infinite because it would require infinite energy. Since the universe is expanding, it would require ever greater amounts of energy. And if there is no beginning,  the universe would require infinite energy both infinitely back in time as well as forward in time. An infinite universe creates unsolvable paradoxes in logic, time and energy. 
Such attempts to revive the concept of an infinite universe are resurfacing in videos such as this one, and in papers and books on physics and astronomy for only one reason: Current serious scientific theories have run into a brick wall when they attempt to see beyond the big bang. Understanding breaks down with no next steps. Since they cannot explain what they are being told by their own numbers and observations, they can go no further. So, they retreat to a concept that no one can prove exists. See, even if infinity actually existed, you could never prove it. There are no concepts, maths, or mechanisms either now available or even conceivable to do so. This is not an opinion. This is just a fact. Other actual/real/existing universes/realities outside of ours are nothing more than conjecture, wishful thinking, or religion. That is not science.

The disturbing thing is that Dianna/Physics Girl knows this. She took the same math classes you and I did. Of all the sciences, mathematics is the only one that provides something called a proof.  For an introduction to understanding infinity, check out Prof George Ellis presenting at Oxford Univ. https://www.youtube.com/results?search_query=Gorge+ellis%2C+infinity. For those who don't know, George Ellis is on par with Stephen Hawking. In fact, they wrote a book together. 

In conclusion, while we DON'T know what lies beyond our universe, we do know that we CAN'T know it. It is a mystery that confounds our best scientific understanding and lies forever beyond human observation. Even Einstein was eventually forced to acknowledge, through Hubble's observations and by his own prior calculations, that since the universe is made of matter and energy, it cannot be infinite.