the collection of events cannot add up to an infinite collection in a finite amount of time, but they do so add up in an infinite amount of time. And since it is coherent to suppose that in relation to any present an infinite amount of time has elapsed, it is also coherent to suppose that in relation to any present an infinite collection of past events has already been formed by successive addition.
— Smith, Infinity and the Past
...if by that you mean an infinite number of material objects
A washing machine is assembled in ordered steps. If these are known then each step is a stage in the construction of the washing machine. Similarly the simple process of adding 1 to a preceding number as in 0,1, 2, 3,... is a buildup to infinity.
It is no more ‘located in the brain’ than actors are located inside televisions. Rather a rational mind is able to recognize such concepts which however are not dependent on being recognized in order to be real.
Infinity exists for the simple reason that if you were to task me to write down all the natural numbers then that would be an instantiation of infinity in the real world.
As for your conceptual anti-infinitist argument, this is an old and surprisingly persistent confusion. Quentin Smith had a nice analysis of this and several other such arguments in a 1987 paper Infinity and the Past.
Yes, I have agreed as much. The problem is that Tegmark is making a contentious premise in his argument, and therefore, we cannot be sure of his conclusion.
Sure, but so what? Nothing interesting results from this.
Of you want to get to the interesting question, let's take Max Tegmark's argument that in our Hubble Sphere, there are only a finite number of possible states.
Faces can differ in details that are smaller than the resolution that can be captured with an electron microscope. Also, different faces, even if they look the same in a particular pair of photographs, can move very differently from each other, which can completely alter our perceptions of what those faces look like.
Your may want to rephrase your qestion?
I was referring to that fact that infinity is not a number that is mapped to. That fact doesn't entail an upper bound.
Simple proof that your theory is false:
Abstractions do not exist (not in the real world), they are mental devices that we create via The Way of Abstraction. They reflect types of objects that share some common properties. For example, the abstract object triangle does not actually exist (not in the real world) but triangular objects exist - they are instantiations of the abstraction.
Numbers are abstractions, some of which are instantiated in the real world.
You demand to know why a device like a monitor, camera or book can only store a limited amount of information. Did you already forget that this was the very premise of your stupid argument?
If your monitor - or, say, any device or method for identifying distinct objects - can only register a limited number of objects, due to the way in which it is constructed, and you have registered that many objects, then all that you can say is that there exist at least that many distinct objects. This is the point that you fail to grasp.
Perhaps you will realize your mistake if you reduce the size of the page to the extreme (although a similar exercise with reducing the number of pixels on the monitor failed to convince you). If you only have one character on the page, and there are, say, 100 letters, digits and other signs that you can depict with one character, does this mean that there cannot be more than 100 distinct entities in the world?
Such a square has infinitely many points, but it nevertheless has a finite pixellation. So an object having a finite pixellation doesn't prove that the object is finite.
I think you're confusing the necessary finiteness of the pixellation with the finiteness of the pixellated object.
Wow! So there are an infinite number of pixels in each photo.
Doesn't it bother you that the number of distinct things in the universe is limited by an arbitrarily chosen resolution of your camera?
It is not a "proof" as meant by proof theory.
For that purpose, you first need to list the axioms in your theory.
But that's just a quantitative difference that doesn't bear on the problem with your argument.
Last but not least, you would not be able to prove anything about infinity in the physical universe, because you cannot prove anything at all about the physical universe.
So, taking your "proof" to its logical conclusion, if you could encode all the information in the universe with a digital dataset - that is to say, a sequence of zeros and ones - then all you would end up with would be a bunch of zeros and ones. And since any zero or one is just like any other zero or one, it follows that there are only two distinct things in the universe, which repeat many times over. Brilliant!
Colors are properties, and properties exist.
This is fun. You realize snakes see colors right?
This line of reasoning leads to madness. You end up with nothing but quantum probability waves existing and nothing else.
The existence of conscious minds is the most surprising thing about this universe, I think. It needs an explanation and science is failing spectacularly at providing one.