Able Quote by Luis von Ahn
“Together with my advisor, Manuel Blum, I co-invented CAPTCHAs, or computer-generated tests that humans are routinely able to pass but that computers have not mastered (they are the squiggly computer letters that are prevalent across the web).”
About This Quote
Source Speech: TED Talk “The Human Computation Revolution”, 2008
CAPTCHAs let humans solve problems computers can’t, protecting online security while leveraging human ability.
In simple terms: Humans solve CAPTCHAs, computers cannot.
Key Takeaway
Use CAPTCHAs to safeguard digital services.
Themes
security
human computation
internet
Mood
cautious
optimistic
Type
technological
practical
When to use this quote
- online authentication
- spam prevention
- access control
Key Concepts
cryptography
human‑computer interaction
challenge‑response
Questions to Reflect On
- How can we design future human‑centric security?
- What alternatives exist to CAPTCHAs?
A Different Perspective
CAPTCHAs can be bypassed by advanced AI, reducing effectiveness.
![“[What if my advisor talks only about returns, not risk?] ... It's his job to take risk into account by telling you the range of possible outcomes you face. If he won't, go get a new planner, someone who will get real.” quote by William Forsyth Sharpe](https://sms4smile.com/quotes/img-quotes/7c9/william-forsyth-sharpe-83220_accounts_what-if-my-advisor-talks-only-about-retu_322124.jpg)
