The ONLY place one can sense a hyperspace being is where that being is IN the four variable limits of our sensing. without the extra variable(s) we cannot detect those other variable levels. BUT mathematics can describe them.
It could be a ‘FlatLand’ kind of thing - we only perceive some aspects of it that are available to the senses we have.
Ok, then prove they exist with an experiment. And if you are going to use a dry erase board, you must also show that your math works with the things we CAN demonstrate as real.
I love Sci-Fi, but...
“The Salem witch trials began in February 1692, when four children of Salem, Massachusetts, began suffering from fits, and complained of being “bitten and pinched by invisible agents”. When pressed to name their assailants, they accused Sarah Good, Sarah Osborne, and the slave Tituba, crying out “that they or specters in their shapes did grievously torment them”
There was of course, nobody doing any such thing. But anyone arguing such would be told that this proves witchcraft because the Devil can make himself invisible.
What you are describing is a theory that cannot be tested, or falsified. Mathematics is not describing them, because THAT math does not align with the world we can actually test.
I will be proven correct, but it will be another 200 years or so.
THAT is a religious belief, a faith if you will.
But it is not science.