Say you start taking a 5% of Portfolio Balance and your Portfolio drops in Half due to market meltdown, you're now effectively taking 2.5% of your Portfolio. So, why start your spending with a 'worst case' Withdrawal, if you may not need to?
How I interpreted this paragraph:
Let's say the starting value of the portfolio is $1 million.
Year 1, Day 1: Withdraw 5% of $1 million, or $50,000.
Remaining portfolio = $950,000.
Market meltdown reduces portfolio balance by 50%, to $475,000.
Buy new underwear.
Year 2, Day 1: Withdraw $50,000, or 10.53% of
remaining portfolio.
Portfolio now valued at $425,000.
Buy more new underwear.
What I believe CT was trying to say:
Let's say the starting value of the portfolio is $1 million.
Year 1, Day 1: Withdraw 5% of $1 million, or $50,000.
Remaining portfolio = $950,000.
Market meltdown reduces portfolio balance by 50%, to $475,000.
Buy new underwear.
Year 2, Day 1: Withdraw 2.5% of
original portfolio, or $25,000.
Remaining portfolio = $450,000.
Patch old underwear and move to a van down by the river.