Ya diversification is really important in my eyes and it's never good to have all the eggs in one basket, just look at Luna. I know a guy who lost 6 figures on that, and mainly because he got greedy and did not take his considerable gains. When investing, I think we all need to define a number and if your investment multiplies by that number in a set amount of time, cash out the lot or at least half and search for the next investment.