20% (~300M) illiterate skews old, higher % of whom are active in workforce and will be for decades. Not that ~300M is "niche" as you said, but think of it techn

20% (~300M) illiterate skews old, higher % of whom are active in workforce and will be for decades. Not that ~300M is "niche" as you said, but think of it technology that helps 50% of the workforce vs 20% of population.