If your plan is to be average, then buy a S&P500 index fund.

You're getting a property with lower returns than an index fund would over multiple years.

Personally, I subscribe to the belief that as a young, ambitious hustler that sustains a high savings rate and invests systematically, that I have a far greater chance of compounding my returns and seeing outsized yields on my own business (real estate) right now, in the prime of life, than I will by allowing my investments to grow tax-free in index funds inside a Roth or 401(k). 

As for stock and bond indexes a 65% stock to 35% bond ratio will serve you well.  

Risk in the passive investment sense of the word means beta, or the deviation of investment returns relative to some standard index, such as the S&P500.

.* Edit: CNBC - "The 30-stock index also posted its biggest percentage decline since May"...

So I would suggest to keep it simple: open Roth IRA at Vanguard, contribute max each year, invest in index mutual fund (such as Vanguard Total Stock Market) and when you accumulate enough to do a real estate deal then convert to self-directed IRA. 

The credit reporting agency that will likely be tracking your business credit (as well as the businesses that supply you credit) will want some proof that you are actually conducting business, and will also need a way to index your business in their databases.

All net debtors benefit from inflation in real terms because their debt is worth less if it is fixed and not indexed.

Obama finally started meeting with small businesses – GE, Chrysler, Citigroup, and GM – to discuss the next stimulus package.6.Hot wheels and matchbox cars are now trading at higher prices than GM's stock.7.You get a pre-declined credit card in the mail.8.Your reality check bounced.9.The stock market indexes have been renamed: the Dow is now the down Jones and the S&P is now the substandard and very poor.10.Webster is keeping its dictionary length constant by adding words that are commonly used, such as twitter, tweet, and Facebook and dropping those no longer needed, such as retirement, pensions, and Social Security.I have to admit, I really laughed at a couple of these!