You already know enough. You just need a deeper understanding of what you already know You've had a mental model of a function ever since you understood cause and effect. Input and output.

And now that you've formed the connections between local functions and Lambda functions, a new world of endless possibilities has been unlocked.

With Serverless + AWS, what would once take weeks, now takes hours.

Worse than tightly coupled code is when you are coupled to beliefs that limit what you see as possible for you to accomplish. Decouple your expectations from that perception and realize that you are free to build apps faster, cheaper, easier, and better than before.

You can go further.