The ONLY critical thinkers in physics are the ones who occasionally pop up saying things like: “… the Universe flies! It has a life to it that no equation has, and that life to it is a life with which we are also tied up.” (https://ncatlab.org/nlab/show/John+Wheeler)
Physicists and mathematicians have seemingly indoctrinated themselves into believing that, if they just get their special, super-awesome equations right, then they will then have a representation of a universe, or a mathematical system, that “flies”.
Nothing could be further from the truth: no matter what their special, super-awesome equations are, they are still not sufficient to represent a world, or a mathematical system, that “flies”, they are “still missing the single, simple ingredient that makes it all fly.” (https://ncatlab.org/nlab/show/John+Wheeler)
While physicist Julian Barbour has concluded from the awesome equations that time doesn’t exist, physicist Anthony Aguirre has completely given up and gone over to mystical beliefs about time: “I've come to believe that this [what is time?] is not a question that has an answer; that nature does not owe us an answer … once we let go of the feeling that there is a way that reality is, it's enormously freeing and I think that's true of time”.
But how can Julian Barbour and Anthony Aguirre have valid views about time, when they haven’t yet been able to symbolically represent a mathematical world that “flies”?
Obviously, something completely different to equations is required in order to symbolically represent a mathematical world that “flies”.