> Applies machine learning to extract data. Not only machines are let loose on that data. Ever try to open some websites through a VPN or Tor? Often you'll be

> Applies machine learning to extract data. Not only machines are let loose on that data. Ever try to open some websites through a VPN or Tor? Often you'll be presented with Google's Recaptcha tool to verify that you are not a robot but a genuine human visitor (to prevent spam and DDOS attacks). To gain access to the website itself you are enlisted to train Google's algorithms to properly recognize objects on outdoor photographs — including but not limited to mountains, store fronts, house numbers, and cars. A recent 'innovation' has you freehand draw the outline of traffic signs. All unpaid labour, all for a huge proprietary dataset. The old Recaptcha system of proofreading OCR scanned words from books at least had some public merit.