reCAPTCHA - a confluence of solutions

By: Johnathon Wright on: September 03, 2009

One of the things I appreciate about good design is the way two complex problems can be solved more elegantly together than separately. A great example of this is "reCAPTCHA": . It prevents bots from submitting forms and helps "digitize books, newspapers, and old time radio shows" ... they've used crowd-sourcing to replace OCR while fighting spam. Brilliant.


Just checking that you are human. What would be the result of this code?

a = 3*(4/2); b = 1; a+b