[ryandrake]

My guess would be that there are very few people out there, at any stage in their career besides retirement, for whom interest and capital gains are more than a tiny fraction of their income. For most workers, things like salary, bonus, and (for a lucky few) stock grants make up 90% or even 99% of our income until we retire.

[gowld]

Parent is saying that in retirement your income is interest on your invested savings