Rich_by_the_Bay
Moderator Emeritus
I am a big FC fan and find it to be the best retirement calculator I have personally used. Of course, the data you enter can easily be wrong and then the results would be misleading or dangerous to your planning. Inflation is a good example -- just a 1% error can change your success rate considerably. Many of us run numerous scenarios under a wide range of assumptions to partially accommodate that margin of error (kind of a poor man's sensitivity analysis).
Has FC has ever misled you, been wrong in its logic, or revealed errors, deficiencies, or assumptions which might have led to serious planning errors, even though your input was acceptable to you? I'm especially interested in the experience of those already FIREd who relied on FC to guide the decision. Has it been as infallible as it seems to be?
For the record, I have not run into such deficiencies myself -- unexpected results were usually due to my input errors.
Has FC has ever misled you, been wrong in its logic, or revealed errors, deficiencies, or assumptions which might have led to serious planning errors, even though your input was acceptable to you? I'm especially interested in the experience of those already FIREd who relied on FC to guide the decision. Has it been as infallible as it seems to be?
For the record, I have not run into such deficiencies myself -- unexpected results were usually due to my input errors.