It's interesting and a little surprising to me that some people seem to view, "muggles," as a derogatory term. I didn't mean it to be taken that way, at all. I used muggles in the title of this thread, not to disparage anyone, but just to describe "regular" non-Mustachians, i.e., non magical people.
When I tell muggles that my wife and I moved to Hawaii, back in the 90s, took very part-time, close to minimum wage jobs for the first 6 months, and that we still managed to save >50% of our income - in Hawaii!!! - they seem to have a hard time believing it. When I tell muggles that we have a completely paid for, almost brand new car sitting parked on the street, right in front of our paid off house but, yet, my wife regularly walks ~5 miles round trip to a small shop where she likes to buy certain specialty groceries, they seem to have a really hard time understanding why anyone would possibly do that. When I tell muggles that we haven't owned a TV since the 80s, their jaws literally drop wide open, and they just stare, incredulously, as they ask, "Why would you possibly not have a TV?" Recently, two acquaintances offered to give us their old TVs for free. They see us walking all over the neighborhood, so I guess they think we're poor and can't afford a television. I have a friend who works as a patent attorney in Beijing, making well into a six-figure income, who chooses to walk 10 kms, round trip, every day, from his apartment to his office and back, even though he has a perfectly good, almost new car sitting parked in the garage of the building where he lives. Muggles, especially in the US, can't imagine why anyone would possibly choose to do something like that, unless they were dirt poor and couldn't afford to drive by themselves in a car back and forth to work everyday.
Climate change would be easy to solve if everyone were Magical Mustachians. We could all just agree to walk/cycle/public transit to and from work everyday, quit flying around the world on vacations, do away with whole house heating/AC, quit buying a bunch of useless throw away crap that we don't need anyway, cut the world population by about 3/4, all move into cities, surrounded by farms within ~100kms radius, turn the rest of our countries into big national parks where people could enjoy cross country skiing, backpacking, canoeing, etc., and BOOM, problem solved. Unfortunately, if everyone lived the way we do, the stock market would be only a fraction of what it is now. Travel hacking? The only reason American Mustachians can easily get thousands of dollars a year in free travel using CC points is because the majority of our fellow Americans carry balances on their accounts and pay huge amounts of interest to the CC companies. If it weren't for muggles and their high consumption lifestyles, I'm pretty sure FIRE would be a lot more difficult, if not impossible...