Deep Dive EP10 · November 1, 2026 A transportation comparison is only useful when its inputs are visible. Episode 10 uses a long-range thought experiment, not a price quote or a forecast. This article lays out the arithmetic and corrects the totals spoken in the original narration. The correction The hybrid-then-rides example has three inputs: Vehicle purchase: $30,000. Operating costs: 15 years × $3,000 = $45,000. Later rides: 10 years × 12 months × 12 one-way rides × $30 = $43,200. Total: $118,200. The spoken $111,000 total does not match those inputs. Compared with the illustrative $225,000 premium scenario, the difference is $106,800 , not the narrated $114,000. The original audio is preserved; the videos show the correction on screen. Five examples under stated assumptions These examples cover 25 years, 2031–2055, using constant 2026 dollars. They exclude financing, inflation, opportunity costs and ending resale value. Purchase amounts, annual costs and ride prices are assumption...

Deep Dive EP10 · November 1, 2026 A long-term transportation plan should leave room for real life. A vehicle can become too expensive to keep, a comfortable driving route can change, and a promised service may never reach your town. The useful question is not which technology will win in 2050. It is what keeps your everyday trips possible when your needs change. Start with the trips, not the technology Write down the places you need to reach: groceries, medical appointments, friends and family. Count one-way trips, including the return journey. Note the trips that cannot wait, the ones that happen after dark, and the routes you would avoid in bad weather. That list is a better starting point than an advertised feature. A service that works for one destination may not cover another. A low fare is not useful if the ride is unavailable when you need it. A bridge vehicle is an option, not an obligation The episode considers keeping an existing car while it remains safe and economical, th...