When someone invests in something there is an implicit assumption on both sides:<p>As a buyer/investor, I assume that your present value is greater than your price. This is what happens when people buy undervalued stocks. In better cases, I assume that your value after investment is greater than your present value by more than the amount of the investment. That is, by investing in you, I add more value than the amount of the investment. This is what Y Combinator does.<p>As a seller, you make the inverse assumption. Either you have lost faith in the value of what you sell, or you believe that with the investment, you'll be able to make more than you would otherwise.<p>In the case of life equity, the first case is tough to see. If you believed in your life equity's enough to sell it, you wouldn't sell it. So, you must be seeking the second case: If only I had more money now, I could make more money later, greater than the percentage of the funds I need to give back to my investor. From this we can assume that a potential investor would want a justification of how you will earn that money. We're effectively reduced to the same venture funding and loan structures that already exist today.<p>The only other way life equity would work would be as a scam: If life equity investors took advantage of bad-at-math or desperate sellers. This is actually the same as third-world loan sharks, only we're calling it an investment instead of a loan.