Looking for long-term strategies for Roth IRA

[Logan Allec]

You're 27 and have $50k cash in your Roth.  You can't make any more contributions due to IRS limitations.  What's the best way to grow this pup into a beast over the next 30 years?  What would your allocation be?  I was 100% in stocks from 2009 - 2015 and they served me well but I've been wary of jumping back into the market heading in 2016.

Would you always have at least a little bit in stocks/bonds?  Would you put any in a robo-advisor like Betterment or Wealthfront?  Is it too early in life for me to be thinking about investing in notes?  I'm very curious about this last question as a part of me feels that I have time to count on significant appreciation in whatever I invest in over the next 30 years, but then again lots of people smarter and wiser than I am talk about notes a lot around here.

I feel like your typical financial advisor would just tell you to put it in a diversified portfolio at Fidelity or Vanguard or even one of these robo-advisors while ignoring real estate-based investments like notes.  So that's why I'm asking you folks.