I was perusing another thread and started thinking about how time travel is presented to us in OoT. Why is it that Link is reverted back into a child after going back in time? Another user suggested it is his mind that is traveling back and forth but if this is true it would mean Link's body would remain in Hyrule at the end of the game perhaps in a comatose state..
Why is this time travel so different than what we see in Skyward Sword?
It is something that seems almost incoherent if I think about it too much and I'd really like some more input!
An idea I just had while reading this was that if you boil it down to its simplest form, it's not a matter of traveling back it time or through alternate dimensions, it's a matter of traveling between timelines.
Think of it this way- Link touches the master sword and falls asleep for seven years. He awakes as an adult. When he returns the master sword to the pedestal, he goes back to being a child. BUT, we already know that Link was asleep in the Sacred Realm during the time he was returned to and therefore can't also be running around Hyrule breaking the laws of time and space. So what I propose is that the child timeline isn't created at the end of the game when Zelda returns Link to the Past, it's created right then. He's not traveling between past and present, he's traveling between timelines (Adult and Child). The adult timeline is the original one, where he pulls the sword and sleeps 7 years. The child timeline he can then travel to is an alternate universe where this event never happened and he can continue to explore Hyrule in a time where he was originally asleep. This theory does have its flaws, however. Whenever Link returns to adult form, he pulls the master sword and it transports him there. But we know that in the child timeline Ganondorf never entered the Sacred Realm. It's unclear what this means exactly or if pulling it for the sake of time travel is different from what he did originally. It's also worth noting that at the end of the game, Zelda sends him back using the ocarina of time, and when we see him again as a child he's in the temple of time, by the master sword, and shrouded in a blue light. The blue light then disperses into the sword. Once again, I don't entirely know what this means, but it feels relevant in weighing the validity of his theory. Other wrenches in this are Ganondorf's attack on the castle, as well as events that affect both child and adult times such a the windmill incident. Personally I think it makes a lot of sense even if it's not perfect. I also feel like we can rule out a straight multiverse theory though, seeing as there are things in the child and adult times that stay consistent when traveling back and forth (Side quests completed, mini game high scores, etc.)