Ch 7 · Training Tapes: All 1,777 Attempts, Uncut

The reality behind chapter 7: every attempt Sennacher made while learning, replayed exactly from the black box, on a double-speed clock. 12 karts in 12 parallel worlds, one brain: 5 hours and 58 minutes of driving experience in 15 minutes. ▶ The narrated chapter: Chapter 7 · Double Hairpin:    • Ch 7 · Double Hairpin: This AI Forgot How ...   ▶ The whole series in order, from chapter 1:    • Sennacher · Season 1: School (Chapters 1-25)   Sennacher · Training Tapes · Chapter 7: Double Hairpin Sennacher is an AI driver learning to race from scratch: from a cadet kart to Formula 1 lap records, over 300 chapters. One brain, never reset. Every result is real, failures included. A new chapter every 3 days. How to watch: the big panel is one world up close, with its 19 rays (what its brain senses) and the reward it is earning, live; below it, the strip shows all 12 worlds at once, each playing its attempts back to back in the order they really happened. In the strip, each panel counts its own world's attempts (9 = that world's 9th attempt); ATTEMPT 160 in the big panel is the 160th attempt to end, counting all worlds. When an attempt ends, its stamp says how: FINISHED, NOT VALID, OFF TRACK, STALLED or CRASH. Up top: the brain's experience clock, attempts, valid finishes, record and network updates (one every 6,144 decisions), and its learning curves. On the right: the brain of the world in the big panel, live (same colour, same W tag): what it senses, the activity of its 1,024 neurons (new at every decision, 20 per second), what it asks for, and its weights, which only change at each network update, always the exact weights that made each decision. Each attempt starts with half a second stopped at the red light; to keep every world in step with the clock, the rest of the attempt plays slightly faster. The story of this training is told in chapter 7: Double Hairpin. Contents 0:00 How to watch: 12 worlds, one brain 0:29 Attempt 1: the brain from chapter 6 1:47 The hardest crash 2:00 The Instructor steps in: the drill 11:51 The records start falling 15:12 Best of the run: 22.17 s 15:25 The whole run in numbers The whole run • Attempts: 1,777 (532 from the start line: valid finishes 181, not valid 1, off track 38, stalled 4, crashes 308) • The Instructor's drill: 1,245 attempts away from the start line, 261 of them completed (not valid finishes: they don't start at the line) • First valid finish: attempt 1,538 • Best valid finish: 22.17 s • Network updates (PPO): 69, one every 6,144 decisions • Brain experience: 5 hours and 58 minutes, 12 worlds at once Credits Narration: Kokoro-82M synthetic voice (af_heart). An AI voice, not a real person. Music and sound: procedural, generated by code. Simulation: SennacherAI physics 1.0, built to scale. Animated, not real racing footage. Kart: Tony Kant Mini 60 (60cc Mini cadet kart). Track: School Track 07 · Double Hairpin. Subtitles: English, हिन्दी, Español, العربية, Français, Bahasa Indonesia, Português, Deutsch, 日本語, Tiếng Việt. #AI #Sennacher #ReinforcementLearning #TrainingTapes