This is the right answer but the reason they can’t upload the scans is copyright law as demonstrated by Google having to settle with the publishers and allow them to remove their books and limit free access to 20% of text. The AI companies are essentially compressing the information in a huge swath of books that would otherwise be headed to landfill and making them 1000x more accessible. This is unquestionably one of those instances where capitalism is taking money from rich investors and benefiting the 99%.