The more I read about investing the more it seems that diversification is the key. In other words don't put all your eggs in one basket. Have a mix of stocks, bonds: mutual funds, CDs, real estate etc. The problem is that the more you invest in so many investment products the more time you have to spend managing all of them. So it becomes like a full-time job just keeping track of everything. That seems to defeat the whole purpose behind investing. you already worked hard to earn the money and now you have to work hard to keep the money!
So is there some kind of super index fund that invests in pretty much everything? I would think this index fund would try to match the GDP growth of the whole world. So it kind of invests in everything imaginable. This way you just buy one product instead of dozens and get all the diversification that is possible. Does such a monster of investment exist?