Due to a bizarre accident with my Delorean and a lightning storm, I've recently come into possession of a copy of Simba's backtest spreadsheet from the year 2040 that I'd be happy to post, and I've used it to set up my AA. I will thus get 15% CAGR over the next 25 years, with a 100% allocation to --redacted--
Sorry, I've just been informed by members on the time travel forum that I may be violating causality, sorry can't say any more. Good luck!
But seriously, I think the best use of that spreadsheet is to understand how different blends of assets with different risk and correlations, combined together, can lead to higher returns with lower SD. Thus, it's a great educational tool, but I would say your most important decision is bond/equity allocation - the tilting may or may not work out well the next 30 years.