That is getting into different perspectives, a mind made reality which bears no connection and the other one, the physical reality we live in. You have to understand, we can imagine things that don't exist or go against the laws of physics so we can sort of break away from the given physical reality that we all live in. What I mean by "we all live in." is that I can easily go to your location in this world and you can see me, but when it comes to the mind made reality well... that's free will and that's something we cannot change or "meet up at", it's a gift.
I understand what you mean, but to me, i could use the same gift to use FT, or with HUB, no problem to me.
What i see FT, it is just time passed with memories, if that's route i walked every day, i can walk my way ignore everything around me, not even a flash back, what's the problem? Don't you ever got experiences times passed without notice? Red dots on compass, if you actually played any combat game in real world, you should be able to sense enemy. I can sense enemy when playing airsolf game, in my mind it is exactly like how they make the red dot during combat. About crosshair, yes you don't have crosshair in real world but you do have a way to aim whatever it is a gun or a bow. especial you got your natural pointer which is your finger, in video game i don't have a finger, so i can use my imagination to replace the crosshair to my pointer finger. The compass it is actually similar thing to my direction sense, you don't see a compass but i can have that in mind when in real world to keep my direction clear. See i am just using the same gift start from the other end, no problem.