Withdraw 4% every year ,once a year, until you die. 

At least that’s how current retirement accounts work, I imagine it will be a similar case going forward.  

Things will look much different on a savings culture as opposed to a credit culture. 

 I love that formulation: "credit culture versus savings culture"

I've been thinking a lot about the difference between an inflationary/deflationary debt-based fiat system and the coming fixed-supply hard money system.

That sums it up nicely.