That's true and my speculation may be totally wrong, things could simply emerge. Granting that, I must point to how counter intuitive this is, which says nothing about its being true or false. I doubt most rational people would deny that animals have qualia too, there own way of interacting with and dealing with the world. They obviously lack the capacity for science.
So somehow, we develop a system which tells us some things about the mind-independent world, yet it tells us almost nothing about what we directly are most acquainted with. Yet it's been through our experimental engagement with light that we've made remarkable discoveries.
I think we should now say that spacetime is what exists, and is what is given to us by virtue of being cognitive creatures.
Sure, location depends on a human being, this is kind of like the whole paradox of asking where's "up" and "down" in space, there is no up and down. But bring in a human being, then they immediately understand where up and down are.
I don't have a problem with that. I would have to grant other living creatures with experience too, at least those creatures that seem conscious to us, say, a dog or a dolphin. Once you have that, you have a world, properly speaking.
Sure, what Lindei says in that interview is interesting, and obviously speaks to my rationalistic idealist tendencies. But all I'm claiming is that there is something there, independent of us.
Sure, you can reply (if you would, which I don't think you would, or am not clear) that how can we say there is something independent of us, if we are the ones postulating it? I can only say that I can't render metaphysics intelligible if I don't postulate something external to me, that has powers.
But as for location, or universes and all that, I don't have a problem with what you're saying.