History Main / CompoundInterestTimeTravelGambit

17th Apr '17 5:03:57 PM nombretomado
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* Used by interstellar travelers in StephenBaxter's ''ManifoldSpace'', who are frozen in time while traveling through the portal network. It works at first, but laws are eventually passed and assets seized, leaving the travelers flat broke when they return.

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* Used by interstellar travelers in StephenBaxter's Creator/StephenBaxter's ''ManifoldSpace'', who are frozen in time while traveling through the portal network. It works at first, but laws are eventually passed and assets seized, leaving the travelers flat broke when they return.
12th Mar '17 8:03:45 PM AthenaBlue
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* In the ''Series/DoctorWho'' serial ''[[Recap/DoctorWhoS2E9TheTimeMeddler The Time Meddler]]'', the eponymous meddler claims to have done this. Though given what had already been shown in previous serials, he would have had to withdraw his money in a year when Earth was a post-apocalyptic wasteland ruled by the Daleks.
** In need of some ready cash, the Doctor does a humorous version with his 'disappearing police box' act, materialising in front of an already gathered crowd and gathering their money, having presumably dematerialized (from their point-of-view) earlier on.

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* In Discussed briefly in an episode of ''Series/{{Being Human|UK}}'' when VegetarianVampire Hal reveals that he has little to no money Tom asks why he didn't just get a bank account, because being immortal and everything even if there had been periods of massive inflation or something then he'd still have a small fortune.
* Parodied in ''Series/ChildrensHospital'', when one character travels back to TheForties, he makes a LongList of companies to invest in, [[WhatAnIdiot then puts it in a desk, where it stays for
the ''Series/DoctorWho'' serial next sixty years]].
* ''Series/DoctorWho'':
** In
''[[Recap/DoctorWhoS2E9TheTimeMeddler The Time Meddler]]'', the eponymous meddler claims to have done this. Though given what had already been shown in previous serials, he would have had to withdraw his money in a year when Earth was a post-apocalyptic wasteland ruled by the Daleks.
** In need of some ready cash, the Doctor does a humorous version with his 'disappearing police box' act, materialising in front of an already gathered crowd and gathering their money, having presumably dematerialized (from their point-of-view) earlier on.
Daleks.



* Used by the Victorian-era villains in the [=CBBC=] series ''The Ghost Hunter'', once TimeTravel was introduced as a plot point.



* Forms a BrickJoke in the ''Series/StargateSG1'' episode "1969". After SG-1 is sent back in time to the eponymous year courtesy of [[NegativeSpaceWedgie an interaction between the stargate and a solar flare]], Jack borrows some cash from the future General Hammond, then a lieutenant, and promises to pay him back with interest. [[spoiler:When they get back to 1999, Hammond tells Jack he owes him $539.50, including interest.]]



* ''Series/{{Supernatural}}''.
** When Sam and Dean travel back to 1978 in "The Song Remains The Same", Dean off-handedly suggests they invest in some Microsoft stock while they're at it. Sam says they may have to if they can't find a way back.
** In "Time and Time", Chronos raises ready cash by placing bets on horses, using time travel to get the results. Dean traces him through his bookie.



* Discussed briefly in an episode of ''Series/{{Being Human|UK}}'' when VegetarianVampire Hal reveals that he has little to no money Tom asks why he didn't just get a bank account, because being immortal and everything even if there had been periods of massive inflation or something then he'd still have a small fortune.
* Forms a BrickJoke in the ''Series/StargateSG1'' episode "1969". After SG-1 is sent back in time to the eponymous year courtesy of [[NegativeSpaceWedgie an interaction between the stargate and a solar flare]], Jack borrows some cash from the future General Hammond, then a lieutenant, and promises to pay him back with interest. [[spoiler:When they get back to 1999, Hammond tells Jack he owes him $539.50, including interest.]]
* ''Series/{{Supernatural}}''.
** When Sam and Dean travel back to 1978 in "The Song Remains The Same", Dean off-handedly suggests they invest in some Microsoft stock while they're at it. Sam says they may have to if they can't find a way back.
** In "Time and Time", Chronos raises ready cash by placing bets on horses, using time travel to get the results. Dean traces him through his bookie.
* Parodied in ''Series/ChildrensHospital'', when one character travels back to TheForties, he makes a LongList of companies to invest in, [[WhatAnIdiot then puts it in a desk, where it stays for the next sixty years]].
* Used by the Victorian-era villains in the [=CBBC=] series ''The Ghost Hunter'', once TimeTravel was introduced as a plot point.
5th Dec '16 3:45:29 AM JackG
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** In need of some ready cash, the Doctor does a humorous version with his 'disappearing police box' act, materialising in front of an already gathered crowd and gathering their money, having presumably dematerialized (from their point-of-view) earlier on.



* ''Series/{{Supernatural}}''. When Sam and Dean travel back to 1978 in "The Song Remains The Same", Dean off-handedly suggests they invest in some Microsoft stock while they're at it. Sam says they may have to if they can't find a way back.

to:

* ''Series/{{Supernatural}}''. ''Series/{{Supernatural}}''.
**
When Sam and Dean travel back to 1978 in "The Song Remains The Same", Dean off-handedly suggests they invest in some Microsoft stock while they're at it. Sam says they may have to if they can't find a way back.back.
** In "Time and Time", Chronos raises ready cash by placing bets on horses, using time travel to get the results. Dean traces him through his bookie.
9th Nov '16 10:42:45 AM nombretomado
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* inverted in ''TheFlintstones'': Fred borrows 4 dollars on his paycheck so he can have a long weekend with Wilma and the Rubbles, thanks to the Great Gazoo, they get sent to a [[TheJetsons very Jetson-like future]], while he's in the future, he visits his employer, and discovers that he owes his company 23 million dollars.

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* inverted in ''TheFlintstones'': ''WesternAnimation/TheFlintstones'': Fred borrows 4 dollars on his paycheck so he can have a long weekend with Wilma and the Rubbles, thanks to the Great Gazoo, they get sent to a [[TheJetsons [[WesternAnimation/TheJetsons very Jetson-like future]], while he's in the future, he visits his employer, and discovers that he owes his company 23 million dollars.
3rd Nov '16 1:28:11 PM ironballs16
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** Which was also part of his lesser plan to prove to his father that he was a "self-made man". His father called BS on this.

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** Which was also part of his lesser plan to prove to his father that he was a "self-made man". His father [[LoopholeAbuse called BS on this.this]].
12th Aug '16 7:47:42 PM nombretomado
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* The Time Travel based RTS game ''{{Achron}}'' has a variant of this known as 'Retconomy'. One of the playable species creates harvesters by morphing one of their basic units. These basic units can be built and paid for in the future and then sent into the past where they become harvesters and begin gathering resources. The end result is that the player will have gathered more resources in a shorter amount of... er... time than a player that had not used time travel.

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* The Time Travel based RTS game ''{{Achron}}'' ''VideoGame/{{Achron}}'' has a variant of this known as 'Retconomy'. One of the playable species creates harvesters by morphing one of their basic units. These basic units can be built and paid for in the future and then sent into the past where they become harvesters and begin gathering resources. The end result is that the player will have gathered more resources in a shorter amount of... er... time than a player that had not used time travel.
7th Aug '16 4:56:26 PM Fireblood
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* In 1562, the German town of Mittenwalde loaned the town of Berlin 400 guilders at 6% interest, compounded annually. They would like to be repaid. With interest, Berlin owes Mittenwalde approximately 97.7 trillion guilders. Oh, and one guilder is equivalent to 280,000 euros (in 2012). [[IfMyCalculationsAreCorrect So Berlin's total debt comes to]] over 27 ''quintillion'' euros. [[CaptainObvious Which is more than they have]]; indeed, it's more money than all the money in the world (The world economy is measured on the order of tens of trillions. A trillion is millionth of a quintillion).

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* In 1562, the German town of Mittenwalde loaned the town of Berlin 400 guilders at 6% interest, compounded annually. They would like to be repaid. With interest, Berlin owes Mittenwalde approximately 97.7 trillion guilders. Oh, and one guilder is equivalent to 280,000 euros (in 2012). [[IfMyCalculationsAreCorrect So Berlin's total debt comes to]] over 27 ''quintillion'' euros. [[CaptainObvious Which is more than they have]]; indeed, it's more money than all the money in the world (The (the world economy is measured on the order of tens of trillions. A trillion is millionth of a quintillion).
10th Jun '16 6:38:28 PM HighCrate
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* In the ''Literature/EndersGame'' [[TheVerse universe]], Andrew "Ender" Wiggin gains quite a bit of money by moving from star system to star system at relativistic speeds. After some careful managing and over a thousand years of travel his account is sufficient to buy a planet. It should be noted that the only reason it works for Ender (and his sister Valentine) is that he has a sentient AI operating in real time keeping track of his investments. His money isn't just sitting in an account gathering interest, it's actively and intelligently being invested even while he's in relativistic travel.

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* In the ''Literature/EndersGame'' [[TheVerse universe]], Andrew "Ender" Wiggin gains quite a bit of money by moving from star system to star system at relativistic speeds. After some careful managing and over a thousand years of travel his account is sufficient to buy a planet. It should be noted that the only reason it works for Ender (and his sister Valentine) is that he has a sentient AI operating in real time keeping track of his investments. His money isn't just sitting in an account gathering interest, it's actively and intelligently being invested even while he's in relativistic travel. Probably doesn't hurt that he started with an ungodly amount of seed money, being the acknowledged savior of the human race and having been paid accordingly by a grateful world populace.
30th May '16 5:00:30 PM Specialist290
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And of course, if any of these tactics are indeed possible, you probably won't be the only one to notice this. Hordes of time-travelers attempting to manipulate currency is sure to result in the eventual destruction of the economy. Time-travel responsibly, folks.

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And of course, if any of these tactics are indeed possible, you probably won't be the only one to notice this. Hordes of time-travelers attempting to manipulate currency is sure to result in the eventual destruction of the economy.economy ([[ClockRoaches or the time stream]]). Time-travel responsibly, folks.
23rd May '16 4:44:59 PM Furslid
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Another variable that is rarely mentioned in fiction is the need for authentic-period currency. A dollar bill will obviously get you nowhere in Feudal Japan, but the more detailed design on a series 2004 $20 bill is likely to be considered counterfeit anytime before 2004 (depending on how much the other party is paying attention, but bank tellers would be the most likely people to spot that kind of thing; oh, and don't forget that most coins have the year they were made on them.). You do not, however, have to go that far back in time. Just grab what's in your pocket, remove everything printed in the last year, travel to one year ago, and invest that. You wouldn't get your money in your present, but you may get it in the way cooler than your present future.

to:

Another variable that is rarely mentioned in fiction is the need for authentic-period currency. A dollar bill will obviously get you nowhere in Feudal Japan, but the more detailed design on a series 2004 $20 bill is likely to be considered counterfeit anytime before 2004 (depending on how much the other party is paying attention, but bank tellers would be the most likely people to spot that kind of thing; oh, and don't forget that most coins have the year they were made on them.). This is less of an issue with precious metals or other commodities. A 20$ gold piece may look funny in feudal Japan, but is still gold. Aluminum may be especially good for trying this. You do not, however, have to go that far back in time. Just grab what's in your pocket, remove everything printed in the last year, travel to one year ago, and invest that. You wouldn't get your money in your present, but you may get it in the way cooler than your present future.
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