Facebook Lite was released to address this disparity. This paper investigates the login mechanism of Facebook Lite not merely as a user action, but as a case study in lightweight software engineering. We aim to deconstruct how the application minimizes the "Time to Interactive" (TTI) during the authentication process.

A: This happens if you clear your app data, use a "cleaner" app that removes login sessions, or if Facebook detects suspicious activity from your device.