[valbaca]

> if it has to reach out to literally any other component of the system

Maybe it doesn't have to "reach out to literally any other component" Sometimes code can be self-contained. That's why they're called "Edge Functions" and not "Edge Services"

The advantage is edge functions are physically closer to the customer (lower latency) and can be updated at-will and all at once (unlike client-code, you cannot force a user to update their app).