In my lifetime I've discovered a great many incredibly talented individuals. Some have achieved stardom. Simultaneously I've seen many dreams shattered egos destroyed and lives changed forever. The end destination may well be fame and fortune but the road to stardom is littered with broken hearts.
In the ideal classroom the teacher is either spending all of their time doing deep interventions with students on a one-on-one basis or facilitating true interactivity - labs simulations projects.
Many museums are drawing audiences with art that is ostensibly more entertaining than stuff that just sits and invites contemplation. Interactivity gizmos eating hanging out things that make noise - all are now the norm often edging out much else.