If you want big profits, you should accept big risk. Both choices can be and unfortunately, it is impossible to know which one will happen. I think it is better to try as you can risk, otherwise you may lose all your money. ''Greed is good, but when the time comes.''
The "big risk" should be based on multiple investments but should not be based on only one investment. I believe anyone will be ready to take big risk so that they can enjoy big profits but that big risk should be the sum of multiple and different investment based. If they invest all their money into only one asset then that must be a different case than what we usually considering as a big risk.
It is like, there are two types of scenarios for calculating our profits based on risk. But, I never recommend anyone to go for only one opportunity when there are multiple easy way of money making is possible by investing with them. We should grab all the opportunity so that we can minimize the risk. How much returns we are expecting is secondary case but how effectively we are eliminating the risk is more important than calculating about how much profit we are going to get.