The text discusses the basics of authentication flows and the role of notifications in facilitating user entry into a product, as part one of a two-part series. It highlights the importance of welcome emails, which introduce new users to available resources, and the need for password reset notifications for users who forget their passwords. The transition from password-based to passwordless authentication, such as magic links, is explored, emphasizing benefits like enhanced security through integration with identity providers like Google Workspace. This method reduces the need to build reset password flows and supports two-factor authentication (2FA) by default. The post suggests using Knock to manage these notifications and invites readers to engage with any questions or feedback.