You are obviously neither a CPA nor an MBA. The general rule of thumb is that an investment must have a ROI of less that 7 years max, and ideally under 3 years. Otherwise, you are much better off making a different investment choice with 8.5 Billion dolars.
That's why they are CPAs or MBAs, not school dropouts that created MS and Apple.
All Finagle Laws may be bypassed by learning the simple art of doing without thinking.