My preference is the extreme. I like the 3 sigma either way on a bell curve of investing risk. On one side, it is AAA government bonds and blue chip common / preferred stocks and bonds and on the other is seed startups, Iceland, Greek, or other high risk of default, investments.
What are the advantages and disadvantages to investing at the extremes, and is a macroeconomic trend the biggest risk when investing at the extreme? For example, is a global economic recession or depression the greatest risk if I am in risky assets?