I mean, it does work, but using a sample size of one single year isn't the best way to explain or prove it.

Yes, it works. I've been investing a minimum of $500/week for the past 8 years. Currently I'm investment $1000/week. I make good money and keep my expenses low, and now have more than 33x my yearly expenses in investment/savings. I'm planning on retiring early...

Nice blog, but watch out for advising people that putting money in index funds 'pretty much assumes an 8% return'. Returns can vary wildly year by year even if 7-9% annual is accurate over the last 20-30 years or so. Bogle (and others) is estimating the coming year's returns to be lower than 7.