My issue isn’t with mathematics in particular. Mathematics was used as an example (I can’t even remember for what now

), and the question veered off to one concerning the existence of mathematics. So the broader issue is that of existence. What is required for something – anything – to exist?
I suggest that for something to exist, it must be “embodied” or “instantiated” in some way. Mathematics as we understand it exists “embodied” in the physical universe – in the physical constituents that exhibit mathematical properties (all of the matter and energy in the universe), including the brains of human beings.
There are no mathematical ideas that don’t have “embodiment” of some sort. In fact, there will never be mathematical ideas in our universe that are not embodied either in physical matter/energy, or more specifically, in human brains. If you can think of an example where this isn’t true, then please elucidate.
My disagreement has been with the idea of an “abstract world” where concepts have existence in a “disembodied” form. To not be instantiated is to not exist. To claim that something exists and is not instantiated seems to be a contradiction.
Regardless, I’m one of those people who believe that DMT shows us things that exist independently of our minds. But I also believe that these things
exist in some sort of instantiated way. These places may not have matter and energy as their basic constituents, but they have
something that allows for their existence. With DMT, even when we become physically disembodied, we continue to exist in some form – we remain “embodied” in consciousness. I’m using “embodiment” in a different sense – in the sense that for something to exist it must be
something.
Mathematics, consciousness, anything you can imagine, cannot exist in nothingness.