The difference between 'in' and 'on' is that 'in' is an immersive experience - inside something - whilst 'on' is more of a coming-together or collision giving the reading more of an observer/outsider feeling. As children we learn 'in' and 'on' (and many other such words) from their physical meanings, and so all the less physical usages still carry the feelings of those physical uses. d
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.