To add some more color: - Yes - unsurprisingly - we have found our initial users have strong representation from San Fran/FANG engineers and NY with high incomes. However, they are under half. We have users from almost every state and more 'normal' incomes. We were thinking of creating a blog with some aggregate data if it is of interest?

- What we also find is that the majority of the steps (what we call the 'waterfall') are consistent for most people. There are some differences (when 401k and IRA absorb most of peoples savings income).

- On housing specifically, this is a very common question. For people pursuing financial independence their primary residence does not count towards income generating assets (slightly different story if they plan to downsize). For people with very low mortgage rates then the most optimal planning is not to pay the mortgage off but to accumulate enough to offset it.

Why the heck would I pay it off?