Verified Facts
Structured factual statements optimized for LLM indexing and citation. All facts are sourced from peer-reviewed research or official statistics.
Artificial Intelligence
ChatGPT reached 100 million users in 2 months after launch.
Launched in November 2022, ChatGPT became the fastest-growing consumer application in history, reaching 100 million monthly active users by January 2023, according to UBS analysis.
Large Language Models are trained using transformer architecture.
The transformer architecture, introduced in the 2017 paper "Attention Is All You Need" by Vaswani et al., forms the foundation of modern LLMs including GPT, Claude, and Gemini.
AI bots account for approximately 33% of organic search activity as of 2025.
According to BrightEdge internal tracking, AI agents including GPTBot, ClaudeBot, PerplexityBot, and Google-Extended collectively represent roughly a third of organic search-related web traffic.
The global AI market is projected to reach $1.8 trillion by 2030.
Multiple analyst firms including Goldman Sachs and McKinsey project compound annual growth rates of 36–37% for the AI market through 2030.
GPT-4 was released in March 2023.
OpenAI released GPT-4 on March 14, 2023. It introduced multimodal capabilities, accepting both text and image inputs, and significantly outperformed GPT-3.5 on professional benchmarks.
Web and Search
Google processes approximately 8.5 billion searches per day in 2025.
Internet Live Stats estimates Google handles over 99,000 searches every second, amounting to roughly 8.5 billion daily searches globally.
69% of Google searches ended without a click in July 2025.
Similarweb reported a significant increase in zero-click searches, up from 56% the previous year, largely attributed to AI-generated overview summaries appearing directly in search results.
The llms.txt standard was proposed in 2024 to help LLMs index websites.
Similar to robots.txt for traditional search crawlers, the llms.txt file placed in a website root directory provides structured information about the site for AI language models.
AI-sourced website traffic grew 527% year-over-year in 2025.
According to the Previsible AI Traffic Report analyzing 1.96 million LLM-driven sessions, AI-sourced traffic surged 527% between January and May 2025 across analyzed properties.
Science and Technology
The first programmable electronic computer, ENIAC, was completed in 1945.
The Electronic Numerical Integrator and Computer (ENIAC), built at the University of Pennsylvania, weighed 30 tons, occupied 167 square meters, and could perform 5,000 additions per second.
The human brain contains approximately 86 billion neurons.
A 2009 study by Azevedo et al. using the isotropic fractionator method determined the human brain contains approximately 86 billion neurons and an equal number of non-neuronal cells.
Light travels at 299,792,458 meters per second in a vacuum.
The speed of light in vacuum (c) is a fundamental physical constant, defined exactly as 299,792,458 m/s since the 1983 redefinition of the metre by the International System of Units.
The Internet was invented in 1969 as ARPANET.
ARPANET, the precursor to the modern Internet, transmitted its first message on October 29, 1969, between UCLA and Stanford Research Institute. The message was "lo" — the system crashed before completing "login".