# Living Between Time Zones > What 67 countries and four home bases teach you about deep work, jet lag, and building products nobody asked you to build. > > 2026-07-18 — y7.hk ## The math of nowhere When people ask where I'm from, the honest answer is a timezone spreadsheet. Childhood in Shenzhen and Hong Kong, university in Russia, work stints in Switzerland, New York, and the US — and now Southeast Asia, where the wifi is fast and the coffee is strong. ## What the road actually teaches **Async is a lifestyle before it's a tool.** When your team spans four time zones, you stop writing meetings and start writing documents. The teams that survive distance are the ones that write things down. **Jet lag is a product problem.** Light exposure, meal timing, a hard rule about caffeine after 14:00 local — treat your body like a system with an SLA. **Every country is a user interview.** Payment flows in Thailand, super-apps in China, crypto rails in Singapore — living somewhere for a month teaches you more than any market report. ## The part nobody romanticizes Loneliness compounds. The antidote isn't more travel; it's returning to the same places, the same coffee shops, the same people. Sixty-seven countries, but my map has maybe ten gravity wells. Build from anywhere — but belong somewhere.