AI customer support isn't a tool decision — it's an architectural decision. This episode starts with the support volume paradox (support doesn't scale linearly past 1,000 users, it explodes logarithmically due to combinatorial environment variance), then dismantles the Human Touch Theater Trap: founders spending 25–55% of their week manually answering tickets at an industry average cost of $19 per ticket, while a poor support interaction makes users 50% more likely to churn within 6 months. The full four-tier architecture with exact cost-per-resolution math: Tier 0 self-service docs at under $0.01, Tier 1 agentic AI at $0.50–$1.50 resolving 40–92% of tickets, Tier 2 contractor layer at $15–$25, Tier 3 founder escalation at $150+. Then the head-to-head cost math: Intercom Fin at $534/month for 500 tickets vs custom Supabase + Claude Haiku build at ...