Labeled data is just much more expensive than both the computing time and model builders' time. Only a handful of rich corporations can afford to hire all the h

Labeled data is just much more expensive than both the computing time and model builders' time. Only a handful of rich corporations can afford to hire all the human labelers needed. Or use billions of labelers for free, as with google captcha. All the other teams are trying to do with whatever data crumbs are available.