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You should consider investing in a cryptocurrency master node, a form of passive investment in the cryptocurrency world. You basically buy a large number of coins, usually between 1000 and 50,000 depending on the coin. You agree to hold the coins on your desktop computer in a special type of software called a master node wallet. This software must be in constant communication with the internet to facilitate transactions and perform other specialized computer software for the cryptocurrency coin blockchain. You need a large amount of technical expertise to set-up this computer software and special type internet connection called a VPS server, which can be very difficult. But once it is created it runs by itself with some monitoring by you and generates income daily, weekly or monthly, depending on the coin. You are paid in the same currency in this masternode and you can then exchange it for Bitcoin, then your fiat currency of choice like the U.S. Dollar, Yen or Rupee to pay bills and spend on whatever you wish. This means significant work in the beginning, but after you set it up it works by itself making you money without any further work from you as except monitoring the software periodically and fixing it when it has problems long as the software works properly and the internet connection is maintained.
More info here:
https://steemit.com/investments/@shortsegments/the-newest-passive-investment-strategy-for-smart-investors-cryptocurrency-masternodes