The Biggest Questions About AI
The map · 1 Trajectory · 1.4 Embodied and physical intelligence · 1.4.4

Autonomous mobility

How capable will self-driving vehicles, drones, ships, and industrial machines become outside controlled settings?

Driving is the furthest-deployed case of open-world embodied autonomy, with quantified safety records now public — a preview of the deployment, liability, and trust questions every other mobile system will face. (Military autonomy is treated under Safety 2.5 and Power 4.3.)

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What changed
November 2025–August 2026 · swept August 3, 2026 · editorial review pending
01

Independent validation arrived: IIHS — not Waymo — finds 68% fewer police-reportable crashes than human drivers over 50 million driverless miles, while Waymo's own 170-million-mile update claims a serious-injury crash prevented every eight days. The number that changes the economics debate: roughly 70 remote overseers per 3,000 vehicles. Tesla's robotaxi data, by contrast, has to be reverse-engineered — and looks an order of magnitude behind.

Recent thinking
7 featured from 12 tracked · November 2025–August 2026 · all 12 chronologically →
Insurance Institute for Highway Safety · IIHS · 23 Jul 2026 report
Waymo's driverless cars crash less often than people
The results show that, on a limited scale, these driverless cars are safer than human drivers — who can be impaired or drowsy or suffer lapses in attention.

First fully independent validation of robotaxi safety claims: 68% lower police-reportable crash rates over 50 million driverless miles, with caveats on small samples in Austin and inadequate federal data collection.

Waymo · 19 Mar 2026 report
Waymo Safety Impact update: 170 million rider-only miles
our analysis suggests the Waymo Driver is preventing approximately one serious-injury crash every 8 days.

Update to the canonical rider-only crash benchmark: 92% fewer serious-or-fatal-injury crashes than matched human drivers across 170M autonomous miles — the largest self-reported safety dataset in open-world autonomy.

Timothy B. Lee · Understanding AI · 18 Feb 2026 news
Waymo just revealed a crucial statistic for scaling its technology
the vehicles have the ability to 'phone home' and get assistance from humans if they encounter situations they don't understand.

First hard number on the human-in-the-loop overhead of driverless scaling: roughly 70 remote overseers for a 3,000-vehicle fleet — the key economics-of-autonomy statistic the industry had never disclosed.

Brad Templeton · Forbes · 8 Apr 2026 essay
Does Tesla Really Have A Robotaxi? They Don't Make It Easy To Find Out
One has to ask why, if the data would suggest they are ready to go, they want to keep it hidden.

The most careful independent read of Tesla's robotaxi expansion: an estimated 15 crashes in ~800,000 supervised Austin miles, far behind Waymo, with deployment decisions tracking CEO optimism rather than disclosed performance.

Kai Williams & Timothy B. Lee · Understanding AI · 22 Apr 2026 news
Human drivers keep crashing into Waymos
Another way of looking at it would be, well, would a taxi stop here?

Crash-by-crash review of 78 serious Waymo incidents over seven months: 61% were rear-endings of Waymos, and only one involved a moving Waymo plausibly at fault — but lawful-yet-unnatural robot driving creates its own hazards.

Rodney Brooks · rodneybrooks.com · 26 Jul 2026 essay
House Cleaning My January 1, 2018 Predictions
There have not been any plausible demos of this capability

Brooks retrospectively grades 8.5 years of self-driving predictions: driverless taxis remain limited to two operators, and his 'truly driverless' bar only survives by admitting remote human intervention — a disciplined base-rate check on deployment speed.

Ishveena Singh · DroneDJ · 21 Jan 2026 news
Zipline eyes Houston, Phoenix after 2 million drone deliveries
Autonomous logistics has become an everyday staple for people across several states in the US.

The drone side of open-world autonomy: 2 million commercial deliveries, 125 million autonomous miles, and 15% week-over-week US growth as delivery drones quietly scale.

Additional relevant discussion (5)
Waymo's next five cities are all in red states — Timothy B. Lee & Kai Williams · Understanding AI · 18 Nov 2025
Why it might not make sense for you to own a self-driving car — Timothy B. Lee · Understanding AI · 14 May 2026
Autonomous vehicles' blind spot — Joann Muller · Axios · 29 Jul 2026
The feds are probing Waymo's behavior around school children — Timothy B. Lee · Understanding AI · 29 Jan 2026
Foundational reading (1)Waymo rider-only crash data vs. human benchmarksKusano et al., Waymo · 2024
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