Are we not reading any of the books? Zelinski, Terhorst, Burns, Bernstein... et al? What about the Trinity study or any of the lifestyle gurus? I think Dominguez' example is a pretty potent warning on the dangers of ER via Treasuries. I think that there are plenty of authors who've done post-mortems on failed ERs. (In fact, any author who publishes a book while in ER should probably do their own autopsy.) What are you looking for, a peer-reviewed article in the Journal of Operations Research?
I've done a few autopsies on friends of mine who just don't get it (or who think I don't get it either). Cut-Throat, John Galt, TH, & Unclemick have done the same. Sorry that I don't have an advanced OR degree but I have taken a few courses on the subject, and I think that TH has educated us all on the business science of conducting studies. So again, what are you looking for?
Hey, Cut-Throat, I'm with you. Geez, Donner, I'm only 44 and you're depressing ME. Lighten up a little. I entered ER in the same frame of mind as my 20s, and many of my alleged friends tell me that I still have that level of maturity.
As we pointed out on your inaugural post, this is not rocket science. Determine your expenses. Save 25x that amount for a 4% SWR. Take a sabbatical or unpaid leave or a long vacation and test-drive ER. Check those expense numbers one or two more times (perhaps with TH's handy appliance-replacement budget numbers) and figure out if your portfolio is adequately capitalized. If it is and you feel that you can handle it, then ER. If it works, great! If not, make a spouse compromise or volunteer at a charity or even get another (*gasp*) job.
But don't sit there fully employed, especially with YOUR impression of non-discretionary expenses, and expect to have the credibility to complain about ER naivete, concern, or empathy. We're doing just fine. Come on in-- the water's great. Do it while you have enough life left to enjoy it...