Filed under: Forecasts, Comfort Zone InvestingTed Allrich is the founder of The Online Investor and author of the just released book: Comfort Zone Investing: Build Wealth And Sleep Well At Night. In this weekly column, he'll offer advice to investors who are just getting started.I'm not a pessimist by nature. Quite the opposite. I may be the most optimistic investor ever. But lately there are things happening in the financial world that make me think a top may be forming for two different types of investments.Let's take commercial real estate first. It was just announced that a building in New York, 450 Park Avenue, was sold for $510 million. In order to make sense of this, you need to know how many square feet the building has. If ...