"Collapse fragmented tools into one natural-language interface Karpathy built an AI agent called 'Dobby' that took over control of his home from six separate apps — lights, HVAC, shades, pool, spa, and security — all through a single WhatsApp thread in plain English. He notes, "I used to use like six apps, completely different apps and I don't have to use these apps anymore. Like Dobby controls everything in natural language." The practical takeaway is that whenever you find yourself switching between multiple specialized tools for a single domain, there may be an opportunity to unify them under one intelligent interface rather than learning each UI separately. Source: Andrej Karpathy, Conviction, Episode with Andrej Karpathy"