[PlatoIsADisease]

I dont think its safe to assume perfect balance.

Further, I know it goes against economic orthodoxy, but I am a big fan of buying low and selling high. When the market is bad, I become more frugal, I might even run on debt instead of selling. When the market is at all time highs, I'll sell some from riskier and move that into other things.

Another oddity in this situation... People die slightly more often during flu season, so you could game this and plan to withdraw less.