The problem with that argument is that it mixes macro and micro economic scales to substantiate the claim and I think that's erroneous. In whole world, are there more efficient painters than me? Absolutely. Saying I should keep working to pay someone who is more efficient at it to paint my house while I'm more efficient at my job is the macro view. The problem with the macro view is it takes into consideration a whole bunch of variables that mean nothing to me because they are outside the scope of my life. The micro economic view says differently, depending on a bunch of other variables. Are you good at your job? Do you even like you job? Do you want to retire? There's a whole bunch of questions that have to be asked before you even get to the starting point of the argument in that article. If I hate my job it might be a moot point. If I can hate life at my job or hate life painting my own house I'm going to choose painting my own house if that means retiring earlier. Of course there are limits to my skills as an amateur. I'm not tearing down engine blocks any time soon. The article's argument does nothing to help me answer the question as to whether I, Mr. Green, should retire early. It applies generically to we, the aspiring early retirees.