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Case Study #311 — Software Failure Events Timeline

Google Bard AI chatbot factual error in launch promo

Google's own promotional video for its new Bard AI chatbot showed the bot confidently giving a wrong answer, and the resulting embarrassment contributed to a roughly 9% one-day drop in Alphabet's share price, wiping out about $100 billion in market value.

2023-02-08
When it happened
Technology
Sector
#311 of 314
Ranked by documented impact
01 — What Happened

The damage was public. The root cause was preventable.

Google's own promotional video for its new Bard AI chatbot showed the bot confidently giving a wrong answer, and the resulting embarrassment contributed to a roughly 9% one-day drop in Alphabet's share price, wiping out about $100 billion in market value.

Technology
Sector affected
2023-02-08
Date of the event
#311
Rank among documented software failures
2
Distinct root-cause clauses identified below
02 — The Root Cause

What the software actually got wrong

Asked what a 9-year-old could be told about discoveries from the James Webb Space Telescope, Bard incorrectly claimed the telescope took the first-ever photographs of a planet outside our solar system, a feat actually achieved years earlier by a different telescope; the error was not caught before Google published the video, exposing how confidently large language models can state incorrect information.

01Root Cause

Asked what a 9-year-old could be told about discoveries...

What Happened

Asked what a 9-year-old could be told about discoveries from the James Webb Space Telescope, Bard incorrectly claimed the telescope took the first-ever photographs of a planet outside our solar system, a feat actually achieved years earlier by a different telescope

How Requs AI Catches This

Requs AI Edge Case flags this exact pattern at the requirements and architecture stage — before a single line of code implementing it exists — so the assumption behind it gets challenged while it is still cheap to fix.

02Root Cause

The error was not caught before Google published the...

What Happened

the error was not caught before Google published the video, exposing how confidently large language models can state incorrect information

How Requs AI Catches This

Requs AI Software FMEA traces this failure mode back to the system-level hazard it feeds, tagging it against the Common Defect Enumeration so it surfaces in review instead of in the field.

03 — How This Gets Caught Before It Happens

Beyond code coverage and "shall" testing

Root causes like this one rarely show up in code coverage or requirements-compliance testing, because nobody wrote a requirement anticipating the specific edge case that broke. Requs AI Edge Case and Requs AI Software FMEA are built to surface exactly this class of overlooked failure mode — before the software is written.

Requs AI Edge Case

Surfaces this before code exists

Identifies edge cases like this one at requirements and architecture time, using the Common Defect Enumeration to catalog failure patterns seen across hundreds of real-world software failures — including this one.

Requs AI Software FMEA

Connects the failure mode to the hazard

Traces this class of root cause directly to the system-level hazard it can produce, so a defect pattern like this one gets flagged during design review instead of after it ships.

Find the overlooked root causes before they ship.

Schedule a demonstration, or explore how Requs AI Edge Case and Software FMEA use the Common Defect Enumeration.