math no make sense

So many words.

The point of Schrödinger’s cat is that the rules of the quantum world don't make (intuitive) sense when applied to the macro world.

Exactly. Quantum mechanics has puzzled physicists for centuries. The explanations of the atomic and subatomic world, differs greatly from that of the observable world. Nothing is for certain. Everything is based on probability and randomness. It’s so freaking awesome.

i don't think i said something wrong: the fact that mathematicians and scientists use Pi and infinity doesn't mean that they exist in the universe, they only exist in our mind, like "the Lord of the Rings" stories. Things always work and are created by scientists in an approximate way, because Pi is unknown and we only know an approximate value, so anything built or used with Pi is always something approximate.

Not only that, Pi is not the only thing unknown by mathematicians: they know the result value of the derivative, but they will never know the result value of an integral, because there's always an unkown constant (that they can only calculate if they know initial conditions, etc., but not always initial conditions are known).

So you have on one hand physicists unable to know the value of Pi by measuring it experimentally:

You need a circumference to define Pi and it doesn't exist a perfect circumference that could provide Pi value. Such a circumference can't even be drawn on a paper with the most precise machine in the world, just one atom of thickness on one side more than the other would make the value of Pi changed. Not only that, but also a perfect circumference couldn't even be drawn with one atom thickness, because every single atom doesn't even have a fixed thickness value.

On the other hand mathematicians are also unable to calculate the value of Pi:

In a supposedly sci-fi case in which we were able to draw a circumference with zero atoms thickness (which is the ideal circumference that mathematicians use to define Pi), you can't calculate Pi because we are unable to know its exact value via mathematical calculation (and there's a lot of movies about this fact, for example this one is cool: https://en.wikipedia.org/wiki/Pi_(film)

 

What scientists create using Pi and infinity only works temporarily, because it only works in an approximate way, and that's the reason everything breaks as time goes by, and needs constant replacement of its pieces and constant reparation, like the international space station, CERN installations, mechanical watches, etc...

The circles created as gears on any machine are not perfect circles and their deformity makes them to break as time goes by, it could be in a century or a million years, but they will always break eventually. So we should say that scientists or engineers never created anything that works, they only create things that works temporarily (moreover, with "planned obsolescence" they don't even try to create something that really works).

About infinity we obviously know that physicists didn't see infinity to prove its existence. And mathematicians didn't prove its existence mathematically, they can only provide its mathematical definition. You can read here why infinity doesn't exist (a site from the University of Toronto):

https://www.math.toronto.edu/mathnet/answers/infinity.html#:~:text=In%20the%20context%20of%20a,context%2C%20infinity%20does%20not%20exist.&text=So%20there%20does%20not%20exist,called%20%22infinite%20cardinal%20numbers%22.

From childhood we have in our minds the wrong idea that infinity or Pi never ends, but scientists don't know if that's true. Scientists know that it's possible that infinity or Pi could actually have an end. In the same way nobody knows if the universe never ends or actually has a physical limit. Some scientists think the structure of the universe is shaped as a doughnut, so the continuous space-time in the universe is not infinite.

I just needed someone to teach me radius what that gotta do with quantum physics 

(and i don't need to talk about quantum mechanics to say that Pi and infinity don't exist)

1+1 doesn't equal 2, by the way.

1 + 1 as a mathematician expression does equal 2.

as a mathematical expression, 1+1 could equal 2, but not always.

Okay, I understand what you mean. We use numbers to describe reality but they aren’t actually real.
And yes for indefinite integrals we add a ‘+ C’.
The thing is, that one atom being in the wrong place in the non perfect circle, won’t make a difference until the lets say 10^5 digit. We don’t need that many digits. I once read we only need 40 digits of Pi to calculate the circumference of the entire Milky Way. So I say we do know what Pi is, on our classical scale. Also, I agree infinity doesn’t exist, it’s not a number, it’s just a concept.
The thing about not knowing if Pi is irrational, well I would disagree. For example, one of the special properties of the Golden Ratio is that it can be defined in terms of itself, and can be written as an infinite continued fraction. This also makes it the most irrational number possible. We can mathematically prove that it’s infinite.

I think you are right in everything you said except when you said we don't need to know all Pi digits: we don't need that in engineering, to build a car or a rocket, for example. But we need all digits, every single one of them, in order to understand the universe and fully understand math and physics (if one day human kind comes to fully understand science).

One of the goals in science is to develop applications and tools, and sometimes we don't need to know math so deeply for that purpose, with a couple of Pi digits could be enough for many applications. But to understand science and the universe is also another important goal, and this goal requires to question even the most basic accepted knowledge in science.

I don’t believe knowing the exact value of Pi is going to make a difference to the theory of everything.

Thankfully you used the word "believe".

There are thousands of scientific studies that look to be dedicated to a meaningless direction, and later they prove to become crucial and very important. For example:

- Before the Covid outbreak, there were lines of research to study at least 47 different types of corona virus (cousins of the famous Covid-19) and their effects on bats. Before the outbreak anyone would think those lines of research were useless and a waste of time and money. However, those studies are what made possible the creation of the vaccine to stop the covid and save millions of lives.

Nobody knows the implications of discovering the exact value of Pi, it could provide a great advance for all human kind, it could bring knowledge for other purposes that we still can't imagine. Not only that, but also the process of research on one field brings advance to other fields. For example rocket science was a line of research for military purposes, but that's what gave birth to space traveling. In the same way trying to find the exact value of Pi could provide advance in other fields.

Anyways we never know the implications and impact of one discovery on society or science, since nobody knows the future or the result of the research. For example, nobody thought ARPANET could become the internet as we know it today, nobody knew its impact on society, etc.

Unless you know a study or scientific article that definitely proves the discovery of exact value of Pi is useless, you couldn't say it's useless. Fortunally you used the word "believe" to express a personal impression and prejudgement.

i made a forum about my math test yall dont need to right articles bout physics

Hey @chessPlatypus01, actually this is forums. Freedom of speech, to an extent.

do you feel the need to debate about physics on a chess site where a kid posted about a math test

I think you are overstating the importance of the value of circles ratios.
And yes, I realised I should say the word believe, it’ll be dumb of me otherwise, I’m just a kid and haven’t studied much yet.

@chessPlatypus01, yes I do. And if you’ve been reading it all, you’ll see we are still talking about Pi. Which is very much related to your forum. Also why do you care?

lul it turned into a flex forum

why are you debating on his forum? it's filling it up with junk and stuff which he doesn't need to know.

if youre a kid then youre quite the annoying 4th grader that follows you around and recites an article they read somewhere withought the slightest idea what it means, i hope you fall and get stuck in a foam pool