Yes, I can show my math, but I won't. I've done several retirement spreadsheets allowing for multiple assumptions on tax rates and rates of return. You can create whatever result you want based of what you believe the result should be just by tweeking a few variables. My inputs assume the S&P500 index will outperform the MBCBP by several percent, my retirement tax bracket will still be at or near the top bracket and that tax rates for the top brackets aren't coming down.

If "showing my math" actually changed anybody's mind, most of the readers would have set the the DPSP autopilot to "boglehead technique" and invested every available outside dollar in value add real estate and income property over the last decade. Math doesn't change opinions, emotions do.