What is N+1 pattern in Laravel, and what role does it play in a real application?

What is N+1 pattern in Laravel, and what role does it play in a real application? In Laravel, N+1 pattern should be understood as part of a larger application architecture rather than as an isolated API call. A collection query followed by one additional query for every model's relation can grow into many database round trips. A strong understanding includes its purpose, the layer where it belongs, the data or request flow it affects, and the situations where another mechanism may be more appropriate. Practical context: Eager loading retrieves related data intentionally to reduce repeated relationship queries and avoid common N+1 query patterns. The specific focus here is N+1 pattern: A collection query followed by one additional query for every model's relation can grow into many database round trips. This question is designed to test not only terminology, but also how the concept fits into Laravel's request, application, database, security, or deployment workflow.