And I still don't understand what is does? I won't buy it.
The good and timeless strategies usually simple and easy to understand. The complicated ones are usually taking some unknown risks. It will come to bite me some day.
As for cash, money market and T bills are simple enough. To avoid tax, take a bit more risky to buy muni.
The things like inflation protected bill, TIPs, already been approved to be junk. Lol...
Invest in things we can understand.