I'm not convinced this is going to be as big of a deal as people think.
Long-run you want AI to learn from actual experience (think repairing cars instead of reading car repair manuals), which both (1. gives you an unlimited supply of noncopyrighted training data and (2. handily sidesteps the issue of AI-contaminated training data.
Long-run you want AI to learn from actual experience (think repairing cars instead of reading car repair manuals), which both (1. gives you an unlimited supply of noncopyrighted training data and (2. handily sidesteps the issue of AI-contaminated training data.