But how?
-Simple, whatever you have buy Bitcoin(s) and deposit them in never before used addresses and forget about them for literally 6 long months/half a year.
-Tip: don't pay any attention to news and don't participate in crypto related forums and social medias, it will drive you crazy.
-Result: after 6 months and after your phone alarm went off since you set it to ring in calendar for exactly 180 days, open your browser and go to one of the reputable exchanges and look at the market price, if your fiat money wasn't doubled if you were to sell your Bitcoins then find me and kick my ass for bad advice. :?
Please refer to the Bitcoin price and charts to see if the price did or did not doubled every 6 months.
I can't find anything remotely similar to this can you? and if so please share with us.
Edit:
Disclaimer:
This post was intended as a quick suggestion to double your fiat money and not your Bitcoin, any body telling and promising to increase the amount of your Bitcoin is either misleading you or tries to scam you, even legit interest paying companies have their own high risk of loss.
Only idiots gamble in hopes of earning money or double their money.
I have a great feeling that this will absolutely work and if you're lucky, there are chances that your money won't just double but triple, or even exceed the rate that you expected if the market has been good during the duration of your keeping. I might actually try this! I do see your end note about gambling and I somehow agree, but let's not say that they're idiots right away. Gambling is all about luck, and if it pours you get to multiply your money instantly while enjoying or entertaining yourself. If you want a sure return, then your strategy can be considered; but if you like taking risks and you're willing to accept the outcome no matter what it may be, then gambling can also be an easy way to make your money grow (hopefully).