In homestuck, seemingly everything has an explanation. One example is the reasoning behind where the players themselves are from - the players are actually born in ectobiology labs IN THE MEDIUM. They are then sent to their planet at various times throughout history, and even that can be changed through the scratch.
But that's not the only Self in a game of sburb. Dreamselves are actually real physical vessels that exist in the medium. By the end of homestuck, every human (except Jake lol) IS a dream self, just one ascended to godtier. These aren't constructs of the mind or metaphsical concepts these are actual real physical people. If paradox space willed it one's dream self could go and visit (and in Dirk's case, physically interact with) their waking self! But I don't think it's actually ever explained where they come from? Obviously we know that some things just come into existence when paradox space creates the medium, and it's implied (through each player coming in one by one and graphics of their planet just,,, appearing, and also from Act 6 Act 3 where I'm pretty sure there's some hints/jokes that the consorts writing on the tablets never actually existed due to the planet only coming into existence when Jane enters the medium) that each planet is created when the respective player enters the medium, so there's precedent that the dreamselves can just spawn in, but we have proof of the dreamselves existing before the players enter the medium, what with dream Jade's stuffed corpse existing before Jade enters the medium. But then that begs the question, when WAS dream Jade created? Was it when Jade was born entered the world through the skaia gate? We obviously know that time acts weirdly when comparing the medium and the real world, as people can communicate seemingly linearly, but things like Grandpa Harley being alive in the medium while being dead in the real world, and Dirk and Roxy having dreamselves at seemingly the same time as Jane and Jake, even though they don't exist in the real world for hundreds more years. Maybe they just came into existence at some point. But that's boring! But I can honestly see no other way, which is unlike homestuck's usual specificity.
Anyway, maybe I'm forgetting something. Let me know if I am. Or if you even read all this LMAO
