Notes
Short notes on what I learned at work.
September 2026
Why most of my campaigns failed
What control groups taught me at Indosat.
Read September 2026Sell where your customers already are
What WhatsApp, Shopee and a million small shops taught me.
Read September 2026AI copy helped, but the offer mattered more
What I learned about AI while personalizing offers for 100M+ subscribers.
Read