The cases were already " exploding ". We only find out the number of cases once we start testing and contact tracing.
It seems you don't understand how a lockdown works in terms or stopping the spread via reducing social interaction.
Lockdowns stopped the spread of covid. That is a fact.
Look at NSW right now. The lockdown has effectively capped the infection rate . A repeat of what happened in Victoria last year when we peaked at around 800 new cases a day
