I happened across an idea in the Idea Seeds, and it grew in my mind. I don't see any immediate place where I could dump it, but you know it has never stopped me from throwing it back at everyone else. So why don't we have a neat little thread for ideas growing out of Idea Seeds? If you happen across one and it talks to you, note it down here. If you make it into a scroll or a full submission, fine. If not, maybe someone else will pick it up.
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Let's try it out. This one comes from Cheka Man:
Witness Protection
A planet where those who enter witness protection can escape old age and death itself, so they can live for centuries without aging-provided they maintain their cover perfectly. If they are outed by anyone or ever utter their true name, they age the number of years they have not aged since the day they entered witness protection (which might mean that they age centuries in seconds and crumble into dust and bone.)
A planet calls for sci-fi, but the mechanism doesn't strike me as very scientific; though it can be forced with some handwaving tech. But if you get into the realm of magic, it makes perfect sense - you deny your own identity and get immortality in return; but as soon as it is revealed, that gift is taken away... often fatally.
The planet can be turned into an island or a valley, add some strange magical properties, a ritual that makes the trick, done. Now, those who have served their land well and lost their former lives for speaking the truth, have a chance to live long and prosper. Just be careful.
(I might make an island or something of this one day, but leave it for public consumption now. You are all free to write it up. Post more ideas that make you think.)