I have $100,000 to invest but want to safely double it in a year. Any suggestions?
There are 2 things wrong with that sentence. You want to invest it safely yet double your money in a year. You want a safe investment? Go invest in a low-medium risk mutual fund at a bank. You want to double your money in only a year? You're going to have to invest in something high risk like a certain stock, Bitcoin, an altcoin, a private business etc. We all want to safely double our money. It's just unrealistic. No risk no reward.
Doubling your bitcoins is not quiet easy but it is also not difficult becuase when you want to change your bitcoins into more bitcoins the only thing you have to do is start tradings and you will find your way self.