Do you believe that there is a physical infinity?

Question

If so, what evidence has been obtained with regards to this?

Answer 1

There's no proof, but I don't know of any instances in physics where experimental results depended on the existence of mathematical infinity. In other words, if there exists only a certain largest quantity or number relevant to the laws of physics, we couldn't ever tell the difference. The concept of infinity helps simplify "doing the math", but does not seem necessary for anything that we know to exist and operate as they have been.

This is a really deep question, in fact.

Answer 2

There is a limit to the observable universe. The speed of light inherrantly sets a limit to how much we can theoretically observe. Since the universe is 13.7 billion years old, no light existed more than 13.7 billion years ago. In 13.7 billion years, light travelled a distance of 13.7 billion lightyears, so that is the theoretical max size of the observable universe. The Wilkinson Microwave Anisotropy Probe (WMAP) is what gave us that age of 13.7 billion years.

However, there may be more physical objects past what can theoretically be observed. We do not currently have any physical evidence for this, but the best guess of astronomers/cosmologists is that the universe is infinite in size beyond what can be seen.

Answer 3

No... and the argument is simple. The universe is of a finite size..

If you had infinity of anything (bananas/energy/mass, etc.), where would you put it?

It is possible to have a very large number of something (i.e. particles in the universe), but never "infinity" of anything.

-Tom

Answer 4

If you live in any part of this world where you can just go outside and see the stars you already know the answer *... and remember that many of the stars you see are really galaxies with billions of stars. God's mind is more than infinite ... so is His universe!

Thanks for the question.

With understanding;
Jonnie

* City's and our civilization have too much ambient light to see the stars. Go to the countryside, the middle of any ocean, or the mountains and you will see! I promise.

Answer 5

the universe you can say that is physical, and the universe is also for our limited intelligence, infinite, so yes, I believe that there is a physical infinity and that is the universe, the evidence I think is the telescope and Stephen hacking