Paragraph 2
 
						  
Mr Mackay wants a 
 that shows whether AI or a person wrote a book. He thinks the 
 needs to know about the 
 of AI input in a book. He said 
 could show if a book is "100 per cent AI-free". His 
 comes just before the USA refused to sign an 
 on AI to keep it "
". The US said too much 
 of AI could "kill a transformative 
 just as it's taking off". It said "pro-growth AI policies" were 
.