Why Fully Self-Driving Cars Are Almost Impossible | The Limit

Business Insider
Business InsiderMar 21, 2026

Why It Matters

Safety lapses and reliance on remote human control delay the rollout of autonomous robo‑taxis, jeopardizing a multi‑trillion‑dollar market and prompting stricter regulation.

Key Takeaways

  • Whimo uses lidar, radar, 29 cameras; Tesla relies solely on cameras.
  • Both platforms still need human intervention, preventing true Level 5 autonomy.
  • Safety incidents like school‑bus failures and a cat death erode trust.
  • Remote assistance staff often overseas, creating jurisdiction and accountability issues.
  • Simulations expand data, yet rare edge cases and weather remain unsolved.

Summary

The video examines why fully self‑driving robo‑taxis remain out of reach, contrasting Waymo’s sensor‑heavy approach with Tesla’s camera‑only strategy. It highlights that neither system has achieved true Level 5 autonomy; both still depend on human oversight, whether via driver attention or remote operators.

Waymo equips its fleet with lidar, radar and 29 cameras, while Tesla relies on eight low‑cost cameras, a choice Elon Musk defends as cheaper but critics argue unsafe. Real‑world failures—Tesla’s missed school‑bus stops, Waymo’s accidents involving pedestrians and a beloved bodega cat—underscore safety gaps and regulatory scrutiny. The discussion also covers SAE automation levels, emphasizing the “handoff problem” at Level 3 and the need for massive mileage to prove safety.

Notable voices include Dan Odow, a former F‑35 systems engineer, who calls Tesla’s Full Self‑Driving software flawed, and the tragic KitKat cat incident that sparked public outcry. Waymo’s remote assistance team, half based in the Philippines, raises questions of jurisdiction and accountability when interventions are required.

The implications are clear: without solving edge‑case detection, weather robustness, and trust issues, the trillion‑dollar robo‑taxi market will stall. Companies must invest in extensive simulation, real‑world testing, and transparent oversight to earn regulatory approval and public confidence.

Original Description

Waymo, Tesla and others are racing to build a potentially trillion-dollar robotaxi business. But after riding in both cars, visiting Waymo's San Francisco depot, interviewing safety engineers, and activists — we discovered that nothing on the road today is truly autonomous. In this episode of The Limit, we explore all the reasons why self-driving cars are almost impossible.
00:00 - Nothing Is Autonomous
00:57 - Lidar vs. Camera Only
03:05 - The School Bus Problem
05:28 - Levels Of Automation
07:27 - Snow
09:22 - The Long-Tail Problem
14:49 - The Human-To-Car Ratio
15:32 - Stuck In A Waymo
18:11 - Inside Waymo's Depot
22:00 - Scale
26:33 - Resistance
31:06 - Where Full Autonomy Happens First
35:55 - Final Thoughts
39:42 - Credits
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#autonomousdriving #autonomousvehicles #waymo #tesla #robotaxi #thelimit
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Why Fully Self-Driving Cars Are Almost Impossible | The Limit

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