> Why do you think rent to income increased 2x in L25y?

I didn't say I think this happened, I just gave example with "if", in reality change may be not as extreme, but even say 20% change on average meaning that certain slice of population was downsizing because was affected dramatically.

I think these stats are not even and can be heavily sliced by region/social slice, e.g. in silicon valley rent definitely raised 2-3 times in last 15 years, but blue color workers didn't receive equal raise in wages.