A Lost Theory by Liam, Age 2
Okay, so let's assume this blue scribble represents the island.
And that this lemony fresh cleaning spray represents the magic river and magic ocean surrounding it.
Every time it rains, the magic water from the magic cave ...
... washes over stuff and makes it more mysterious.
Like John Locke.
Here's Locke and Jack fighting in the magic rain.
Which was so much better than Jack and Kate kissing in the magic rain.
Cuz girls are icky.
I kinda miss Shannon though.
But I digress. So the Man in Black decides to exit the island here,
by making a donkey wheel out of bamboo rods and spit, with which he is able...
...to construct a crude wormhole!
ERGO, THE ISLAND IS A SUB-SPACE-TIME, QUANTUM ZERO-POINT, INFINITY GAP WHICH MAKES TIME TRAVEL NOT ONLY POSSIBLE, BUT INEVITABLE!