There is a wide range of AA here.
I am older than you and still in acquisition mode. I am 100% equities, equities 50/50 US/international. I look at Social Security as my fixed-income component (when it comes), but others have a lower tolerance for risk (fluctuation in value of assets--i.e., the bottom drops out of the market for a month...a year...10 years). The famous Terhorsts have been living off a 100% S&P 500 index fund for years. No social security--too young!
Just today, someone was talking about 50/50 equities/fixed income, equities 50/50 US/international for an autopilot portfolio for his wife should he predecease her. I think 50% FI is too much, myself; not enough protection against inflation. Many people also think any international is too much.
Some posters are 100% in real estate, managing their own properties. (Not for me. Been there. Tried that.)
If you are depending exclusively on your own assets and ignore SS, there are several rules of thumb. One is your % in bonds = your age. Several studies show that 60/40 or 75/25 equities/bonds give very good survivability over 30 years with less volatility than 100% equities.
An old-time poster here, Galeno, used to use a bucket approach. He took 4% out of his pot of 100% equities every year and put it into a CD ladder of 4-year CDs (as I recall). As the 4-year CDs matured, he bought 2-year CDs with them. As the 2-year CDs matured, he put them into a money market account and took out 1/24 of the contents every month. (He later simplified it, I think.) He had 6 years fixed income buffer to smooth out bumps in the stock market being fed by his stocks. The stocks took care of inflation for him. As I recall, the way it balances out he had 10-20% in fixed income and the rest in stocks.
Paul Merriman has a lot of articles that help explain the 4% idea, the value of index funds, the value of international content and other concepts:
FundAdvice.com - Articles
He has lots of tables and charts and has an easy-to-understand presentation. (Secondarily, he promotes a market-timing idea, but market-timing is not popular here and if you want to automate your money machine, this just adds complications--if it works at all. Not recommended by me.)
Who is right? Who is right-er? Time will tell. Do your homework, assess your personal tolerance for risk (market volatility), you pays yo' money an' you makes yo' choice.
You might take a peek into the older threads on this board, too. Lotsa good stuff.