First, you have to explain the problem and provide a high level history of money

Money = a counter balance of human time creating productive things

Money has 2 use cases

1. Value across space
2. Value across time

When money does these things it becomes a unit of account

Fiat System
Value across space = dollar
Value across time = house backed by debt

Gold
Value across space = note with counter party risk = reason for fiat
Value across time = bearer resource hard to counterfeit

Bitcoin
Value across space = Lightning
Value across time = bearer property native to a distributed ledger (impossible to counterfeit)

Money is broken which is causing the issues we see today

Bitcoin is a near perfect money in the sense that its as scarce as our most limited resource; time

Money has always been an abstraction of value tied to a resource, and then to a ledger (Value to Gold to a ledger).

Bitcoin is an abstraction of value tied to a ledger without counter party risk...which is the revolutionary breakthrough