Most conversations move so fast that saying 'thank you, that actually helped' almost never happens. That's why it's so powerful when it does.
'That question you asked made me think about it differently' is more meaningful than a generic thanks. Specificity shows it was real.
A conversation that ends with genuine appreciation feels complete. Both people leave feeling the exchange mattered.
When someone knows a conversation meant something to you, they're far more likely to want to talk again.
You might not get another chance. If this conversation gave you something — tell them now.