I mean, you're doing the brunt end of the arguing my dude. All I did was say anyone would thrive regardless of aphantasia or not. And you're arguing as to why your way is superior. But if you want a full in depth argument here. By the time fill dive is a thing I absolutely believe that the AI driven system behind the tech would be so advanced it would absolutely have a full spectrum code generator for every aspect of a typed creation. So you want to create cortexians, sure, ai will also take into consideration every aspect of this being including what does it taste like if you oick its skin, if you cut it up and cook it, eat it raw, cook it bad, season it wrong, if it's rotting molded and decaying, what language would it speak, what growing up in its environment would be like to survive being rained on by prismatic shards, what kind of civilization would it have etc etc etc. So while you're on the character creation screen trying to imagine these things the guys with aphantasia would be playing the game and just speaking what they want into existence, and you are taking your time to create a work of art.

But wait, there's more. So if you're in a full dive vr system you would have to sign off on the terms and conditions to the game/platform/os you're using. Odd are they're going to have a clause that states that all items created and generated within the game are now property of said game to use at their discretion, so if your model is as amazing as you claim it to be, by the time you're done painstakingly crafting the Michelangelo's statue of David version of whatever 3d simulated creation you're on. The system would already have your piece or pieces available as cloned copies for the people with aphantasia to just use or select from a pregenerated marketplace. so by the time you finish your labor of creating and mentally sculpting your work of art, copies of it generated through AI predictive algorithms to the actual final finished product you create.

I wasn't even trying to argue, I was merely pointing out as my initial statement posts. Anyone would thrive in a God Sim full dive with or without aphantasia. Thriving is irrelevant, anyone would thrive in the scenario you posted. The idea itself is an old one. Imagine being able to create X, Y and Z just by thinking about it. I just think that by then, AI would be so advanced and capable of integrating itself with the human mind that anyone regardless of hoe powerful their imagination may be would be able to have an integrated AI that would just counter whatever anyone else creates. And at that point you're just walking around in a land where you can't create anything with your mind. Welcome to the simulation.