From when I learned to read up to the end of my 20s I read much more than one book per week. Whoever after 30 or maybe a bit before I started to read less and less, until now where I read vert rarely (usually on plane).
I don't know why. Maybe it's psychological. Maybe it's just ageing. Maybe it's my brain fried first by internet then by the smartphone.
I still buy more books than I read, probably unconsciously hoping that one day the flame that pushed me to devour so many books will get ablaze again
Do those time ranges align with the rise of smartphones perhaps?