The 13+ year option is for those with a low savings rate (40% or less, or at least in that range) or those with a negative net worth (large student loans, for example).
Quote from: arebelspy on June 13, 2014, 10:40:06 AMThe 13+ year option is for those with a low savings rate (40% or less, or at least in that range) or those with a negative net worth (large student loans, for example).It is also for those with more conservative assumptions on investment returns. With current levels of valuation (low interest, high P/E ratios), the expected real return on current investments is probably below 4% even for equity-heavy portfolios. I use a 3% SWR for my own estimates, and that puts me at ~18 years to retirement with a small initial stache and a 60% savings rate.