Suppose I were to state
"The Universe is composed of Energy and Matter(Mass)."
What if there is, in reality, one more thing?
I could build all my Theories and Laws based on that statement. But that statement is an ASSUMPTION.
Is that why a Unified Theory has proven to be so difficult.
Leave out one element because you can not measure it and then make Theories.
This sounds like the reasoning of a civilization that existed once, Long ago in a far and distant planet in a far and distant galaxy far far away.
An assumed civilization.. lol..
Well, there's time and geometry, two of A-G's favorite things. And, I read of a particle, detectable though it has no mass. It seems to me that there is much more than 'one more thing' that we, in reality, don't know.
But, it's not enough to simply say that we don't know everything, therefore anything is possible, even if it is true that definitive judgements are not possible about systems of which we know little. I don't know where some people get the idea that the fact that we don't know everything is used as an excuse not to look. I think maybe that accusation is more a hope than a thought.
"Is that why a Unified Theory has proven to be so difficult."
Is that what has the Masters of the Universe nervous? What might be found among the so-called hidden dimensions as the result of an attempt to integrate what we know with what we might find out? Permit no connections until it's certain there will be no uncontrolled, or 'surprise' consequence? Who cares what the consequences are; let the chips fall where they may. Do you know something here? or are you simply speculating? (no offense intended).
"Long ago in a far and distant planet in a far and distant galaxy far far away."
And once upon a time.