Therefore until shown otherwise, I have to consider those extra dimensions to be redundant and in need of being shaved with the Occam's razor off the face of physics and I'll continue to stick to the simple definition of the Universe as the sum of all that exists.
Okay, how many years of advance physics have you studied?
Demanding to be "shown otherwise" is going to require you to do some work.
Right now you sound like someone who understands only one language and claims that everyone else is merely muttering gibberish unless he can be shown otherwise.
The post you were replying to in its title contained the question what were those dimensions in aid of. Further it expressed my reasons for doubting the extra dimensions were in aid of anything at all really.
And my point is that your vocabulary and reasoning demonstrate a lack of understanding.
First of all, why must a dimension be in "aid of" anything?
Second, expressing your reasons in doubting something doesn't really matter one way or another unless you have sufficient understanding of the topic.
I know next to nothing about automechanics. I can express all the doubts I want about whether or not this hoosiewhatsit is needed to make the car go.
So tell me then what is it exactly that you know so well and I am so ignorant of.
This is a topic that requires many years of advancement mathematics and theoretical physics. Much of what people "know" is best expressed as equations.
Have you done the years of schooling necessary to read such equations? To write them? To know if something is in error?
You're to be provided with 8 years of college level courses through the medium of a chat board. On a forum where you've been a member for 3 months.