20 QUESTIONS · 5 TOPICS · ADOPTION RACE · UPDATED OCTOBER 2026

The telephone took 75 years to reach 100 million users. ChatGPT took two months.

Technology now spreads faster than people can learn the words for it. Twenty questions on AI, computing, connectivity, security and the digital economy, each explained, then race inventions against each other. No sign-up, nothing saved.

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TIME TO 100 MILLION USERS
Telephone~75 years
World Wide Web~7 years
Instagram~2.5 years
ChatGPT~2 months
QUESTION 1 / 20 · ARTIFICIAL INTELLIGENCEEasy

What does LLM stand for in AI?

ROUND 1 OF 6 · 0 RIGHT

Adoption race: which got there first?

Which reached 100 million users faster after launch? Some answers are obvious; some reveal how much faster the world adopts things now.

Times are widely cited estimates and depend on how “users” are counted (owners, accounts or monthly users), so treat them as rough.

What this technology quiz covers, in short

Twenty multiple-choice questions on the ideas behind today's technology, four in each of five areas: artificial intelligence, computing, connectivity, cybersecurity and privacy, and the digital economy. The focus is on concepts and milestones that stay true, not on this month's product launches.

Questions were checked as of October 2026 and are reviewed regularly. The quiz is our own and not normed.

By What's Your IQ · Reviewed 4 Oct 2026
Format
20 multiple-choice questions, 4 options each
Topics
AI, computing, connectivity, security, digital economy
Bonus
6-round adoption race
Checked
October 2026
2017the paper behind today's AI boomEight Google researchers introduced the transformer in “Attention Is All You Need”. It is the T in GPT, and the basis of almost every large language model.2
1965Moore's law.Gordon Moore predicted transistor counts would keep doubling, a forecast that held for about five decades.
1989The World Wide Web.Tim Berners-Lee proposed a system of linked pages at CERN; the first website went live in 1991.
2008Bitcoin.Satoshi Nakamoto's white paper described digital money with no central bank, using a blockchain.
2017The transformer.A new AI architecture that made today's large language models possible.
  1. Moore, G. E. (1965). Cramming more components onto integrated circuits. Electronics, 38(8), 114–117.
  2. Vaswani, A., et al. (2017). Attention is all you need. Advances in Neural Information Processing Systems, 30.
  3. Nakamoto, S. (2008). Bitcoin: A peer-to-peer electronic cash system.

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