21

Just track it Since: Nothing other than foreverium is forever You're a time traveller There's no real reason to worry about this ring, whoever has it right now is as ephemeral as any security system. All you need to do is know where and when the ring is at any given point and you can pick the thing up. Wait until the end of time if you want to and just ...


13

The correct answer is to just join the crowd of time travelers getting their own foreverium ring at Evaporation Point. Think about how you've described your foreverium ring for a second. It's immutable, unalterable, and undecay-able. So, what happens when the universe goes old? It survives heat death, it survives particle decay, and it survives at the ...


3

When you are done with the ring, give it to yourself the next time you need it and then when you need it again go back to when you were last finished with it to receive it from your past self. The ring then only exists when you are using it and there's no need to store it at all. If it's stolen while you have it, go back to before that and tell your past ...


2

It's somewhat irrational to worry about theft if time travel is ubiquitous. If the item mysteriously disappears, you can just travel back in time to when it still existed, and take steps to prevent it. Moreover, thieves cannot hide. Every location is space is essentially under surveillance. At any point where some crime occurred, anyone can travel backwards,...


2

Install a time-machine alarm. The moment your safe fails or is on the verge of failing it sends a signal back to you. Now you can zip forward to that moment. Either replacing the safe with a new one or taking the ring back in time and placing in a brand new safe. Repeat and rinse. You will remove the ring from the safe before any thief can strike. This will ...


2

How about having the safe itself (running off a permanent power supply of unobtanium or solar or something) autonomously jump around in time, analogous to spread-spectrum digital radar operation? You know the pattern and thus can get to it when you want to, but the chances of anyone else being able to track it are rather slim.


1

Charles Stross, in the Merchant Princes series, had his characters deal with similar security problems in an analogous situation (certain people, while not able to truly time travel, could travel back and forth between the same place in alternative histories in a many worlds hypothesis type scenario). For example, often they would put valuables at high ...


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