I’m not sure how well we knew before. If I saw increased number of street homeless in 2018 I had no way of knowing just by that data point if that was because o

I’m not sure how well we knew before. If I saw increased number of street homeless in 2018 I had no way of knowing just by that data point if that was because of a worsening economy or because of policy changes (as it happens it was policy changes but I only know that because of reading on the internet).