The honest and simple reality of FIRE is a lie, so I dont believe in it.
The concept, "financial independance", is based on a massing of wealths and collective "reserves" that make you non reliant on a lendor. However this concept is based on a system of accured fiat currency, which is heavily dependant on markets and politics.
As such, no matter how much "you build" you simply dont have the ability to reach "independence" at least not in america, where they can seize commodities from you without question or challenge as per executive orders.
however, with overseas accounts such as the ones offering monies stored in Gold, Silver, and other metals, then more so yes.
Early retirement can be reached by just about anyone though who buys solar panels, pays off their house, has well water, and knows how to garden.
Fastest way to retirement is as follows:
reach median wage status (roughly age 22ish), buy your first home as a short sale (usually saves you 20-40% FMV), live modestly until you pay off your house (bills roughly 800-1400 a month, rest goes to maxing 401k and mortgage), finish paying off house, pay off car, pay off college debt, buy solar panels, pay off solar panels, buy water purifier, pay off water purifier and well install, learn to garden, move your 401k into dividend incomes, retire.
Based on your living style, matching 401k status, dividends you invest in, expense of your car, college debt amount, well install costs, how long it took you to get thorugh school, and your income once you get out, you could be retired anywhere from 28-35 depending on where you live.