Streaks create rhythm, while rewards make progress feel tangible....

https://garrettwigp625.tearosediner.net/why-competition-drives-some-readers-away-and-what-actually-works

Streaks create rhythm, while rewards make progress feel tangible. Personalization ensures content matters to you. These features turn scrolling into a habit. We build this responsibly with total transparency about how these systems nudge users.