It's hard to diversity when your entire "wealth" is determined by a fictional valuation on non-liquid stock. I can offer to buy .0001% of your company that you own 100% for $20. That doesn't make you worth $20 Million.
"CHICAGO — December 1, 2015–Basecamp is now a $100 billion dollar company, according to a group of investors who have agreed to purchase 0.000000001% of the company in exchange for $1."