FIRE usually means doing nothing after leaving the full-time employment. The only thing which I feel comfortable predicting with confidence is that one’s future will end up differently than one would have predicted. It is always prudent for one to contemplate the retirement decision to be humble. FIRE planning comes with a lot of uncertainty. One has to embrace the fact that there is a lot one does not know and cannot predict. The alternative is to spend one’s life trapped in fear. The fear can prevent one from leaving his/her career or it can manifest as constant anxiety around spending in retirement. Neither is desirable.
It is more advisable for one to live large. It does not make sense to do everything it takes to escape mandatory work if one is going to trap oneself in a life constrained by a tight budget with no room to grow, explore, and explore new opportunities which present themselves.
It is more appropriate not to limit one’s view of retirement. Continue to play some offense. Never stop growing and learning. Consider fun and interesting ways to earn some income. It is always good to give oneself options.
Life is more fun when one is playing to win, rather than trying not to lose.